<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@2c29de320f9743ce8420af945eb36812" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Welcome</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@ec72f14910fc423cb67c5f849d9b4b8e">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@ec72f14910fc423cb67c5f849d9b4b8e" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h3>Welcome to <em>3.012x: Structure of Materials</em></h3>
<p style="font-size: 16px;">Welcome to Part 1 of <em>3.012x: Structure of Materials. </em>Before you get started with the course, we recommend that you review all of the material in the <em>Introduction</em> section. This section contains important information about the structure of the course, and details about the types of exercises that you will encounter throughout 3.012.1x. </p>
<p style="font-size: 16px;">We look forward to working with you throughout the semester!</p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@343b155eab4e45178d95c5ae92bcd831" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Overview</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@b7823798273b42d3b229a2e4a476eeb9">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@b7823798273b42d3b229a2e4a476eeb9" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h3>Overview-- Structure of Materials: Fundamentals of Materials Structure</h3>
<p>Structure determines so much about a material: its properties, its potential applications, and its performance within those applications. This course is the first in a three-part series from MIT’s Department of Materials Science and Engineering that explores the structure of a wide variety of materials with current-day engineering applications. Taken together, these three courses provide similar content to MIT’s sophomore-level materials structure curriculum.</p>
<p>Part 1 begins with an introduction to amorphous materials. We explore glasses and polymers, learn about the factors that influence their structure, and learn how materials scientists measure and describe the structure of these materials. Then we begin a discussion of the crystalline state, exploring what it means for a material to be crystalline, how we describe directions in a crystal, and how we can determine the structure of crystal through x-ray diffraction.</p>
<p>If you would like to explore the structure of materials further, we encourage you to enroll in Part 2 and Part 3 of the course.</p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@eade3892ddd2482a8d8565333d60ab2c" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Grading</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@88b049d3227d4377bf91d2889733559f">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@88b049d3227d4377bf91d2889733559f" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h2>Grading</h2>
<p style="font-size: 16px;">A minimum grade of 60% is required to earn a certificate in 3.012.1x. If you choose to pursue a certificate, your grade will be based on the following:</p>
<p style="font-size: 16px;">Problem Sets: 50% <br />Final Quiz-- Computer Graded: 30%<br /> Final Quiz-- Peer Graded: 20%</p>
<p style="font-size: 16px;">Your problem set grade will be based on 2 homework sets that each cover roughly two weeks worth of course material.</p>
<p style="font-size: 16px;">New course material and assignments will be released at 9:00am EST (14:00 UTC) each Wednesday, at will be due back at the same time on the following Wednesday. You can track your progress through the course by clicking on the Progress Bar at the top of the screen. </p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@18e8613719bf475d8e86bdbc346dc17b" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Discussion Forum Guidelines</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@c54c9e425e09436dab34f4a3a71c8c5e">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@c54c9e425e09436dab34f4a3a71c8c5e" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h3>Discussion Forum Guidelines</h3>
<p style="font-size: 16px;">The Discussion Forums will give you an opportunity to interact with and ask questions of both the course staff and your fellow students. Guidelines for the Discussion Forums are given below:</p>
<ul>
<li>Please do not post solutions to the homework problems on the Forum. Guidance and clarification are appropriate; solutions and answers are not.</li>
<li>Post in the correct section of the Forum.</li>
<li>Upvote posts you believe deserve attention.</li>
<li>Please be polite to your fellow students.</li>
<li>Search before posting to ensure that your question hasn't already been answered.</li>
<li>Harassment of any kind on the Forum will not be tolerated.</li>
</ul>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@56dae6a7f4fe43acba12e2d1f841b726" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Course Schedule</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@53c6efd26e2b40d2a9a22d4e3dd96580">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@53c6efd26e2b40d2a9a22d4e3dd96580" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h2>COURSE SCHEDULE</h2>
<p style="font-size: 18px;">The schedule of due dates for 3.012.1x can be found below. </p>
<p></p>
<table style="border: 1px solid black; width: 912px;">
<tbody>
<tr>
<td style="border-collapse: collapse;"><strong>Course Unit</strong></td>
<td style="border-collapse: collapse;"><strong>Release Date</strong></td>
<td style="border-collapse: collapse;"><strong>Due Date</strong></td>
</tr>
<tr>
<td style="border-collapse: collapse;">Unit 1</td>
<td style="border-collapse: collapse;">23 January</td>
<td style="border-collapse: collapse;">06 February</td>
</tr>
<tr>
<td style="border-collapse: collapse;">Unit 2</td>
<td style="border-collapse: collapse;">06 February</td>
<td style="border-collapse: collapse;">20 February</td>
</tr>
<tr>
<td style="border-collapse: collapse;">Final Quiz-- Computer Graded</td>
<td style="border-collapse: collapse;">20 February</td>
<td style="border-collapse: collapse;">06 March</td>
</tr>
<tr>
<td style="border-collapse: collapse;">Final Quiz-- Short Answer</td>
<td style="border-collapse: collapse;">20 February</td>
<td style="border-collapse: collapse;">27 February</td>
</tr>
<tr>
<td style="border-collapse: collapse;">Final Quiz-- Grade Peers</td>
<td style="border-collapse: collapse;">27 February</td>
<td style="border-collapse: collapse;">06 March</td>
</tr>
</tbody>
</table>
<p style="font-size: 16px;"><span style="text-decoration: underline;">Please note:</span> All assignments are released at 9am EST and are due at 9am EST the next week.</p>
<p style="font-size: 16px;"></p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@966aa1de0c2c43239b44fdf7e4fd7462" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Accessibility</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@e9a1d69b774a4f6c984e32b2f78d801e">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@e9a1d69b774a4f6c984e32b2f78d801e" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h3>Accessibility</h3>
<p><b>The MITx Commitment to Accessibility:</b> If you have a disability-related request regarding accessing an MITx course, including exams, please contact us as early in the course as possible or at least 2 weeks prior to an exam start date to allow time to respond in advance of course deadlines. Requests are reviewed via an interactive process to meet accessibility requirements for learners with disabilities and uphold the academic integrity for MITx.</p>
<p>Contact: EdX Accessibility <a href="http://www.edx.org/accessibility" target="[object Object]">http://www.edx.org/accessibility</a>.</p>
<p></p>
<p></p>
<p></p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@vertical+block@6261bccf2a8f48e19d68637d8704729d" data-block-type="vertical" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="VerticalStudentView" data-runtime-class="LmsRuntime" data-runtime-version="1">
<h2 class="hd hd-2 unit-title">Problem Types</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@f7cf0112a68f47e88cf092c1a29b5c3b">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@html+block@f7cf0112a68f47e88cf092c1a29b5c3b" data-block-type="html" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="False" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<h2>Problem Types</h2>
<p style="font-size: 16px;">Throughout 3.012.1x, you will encounter several types of problems. This unit outlines the types of problems that you will find, and it provides a brief tutorial that guides you through the various ways that you can enter your answers into the edX platform. Please review this material before attempting any Homework or Quiz problems. </p>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@3354cb57d59644ffbb4eef8a5af9e554">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@3354cb57d59644ffbb4eef8a5af9e554" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_3354cb57d59644ffbb4eef8a5af9e554" class="problems-wrapper" role="group"
aria-labelledby="3354cb57d59644ffbb4eef8a5af9e554-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@3354cb57d59644ffbb4eef8a5af9e554" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@3354cb57d59644ffbb4eef8a5af9e554/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="3354cb57d59644ffbb4eef8a5af9e554-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@3354cb57d59644ffbb4eef8a5af9e554-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@3354cb57d59644ffbb4eef8a5af9e554-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><p>Many of the problems that you encounter will require a simple numerical answer. Try typing "3.14" into the box below.</p>
<p>What is the value of pi (to two decimal places)?</p>
<div id="formulaequationinput_3354cb57d59644ffbb4eef8a5af9e554_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_3354cb57d59644ffbb4eef8a5af9e554_2_1" id="input_3354cb57d59644ffbb4eef8a5af9e554_2_1" data-input-id="3354cb57d59644ffbb4eef8a5af9e554_2_1" value="" aria-describedby="status_3354cb57d59644ffbb4eef8a5af9e554_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_3354cb57d59644ffbb4eef8a5af9e554_2_1"/>
<span class="status unanswered" id="status_3354cb57d59644ffbb4eef8a5af9e554_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_3354cb57d59644ffbb4eef8a5af9e554_2_1" class="answer"/>
<div id="input_3354cb57d59644ffbb4eef8a5af9e554_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_3354cb57d59644ffbb4eef8a5af9e554" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_3354cb57d59644ffbb4eef8a5af9e554">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="3354cb57d59644ffbb4eef8a5af9e554-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="3354cb57d59644ffbb4eef8a5af9e554-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="3354cb57d59644ffbb4eef8a5af9e554-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@11e80ee6d6b54171a267b22fe77c6ea8">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@11e80ee6d6b54171a267b22fe77c6ea8" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_11e80ee6d6b54171a267b22fe77c6ea8" class="problems-wrapper" role="group"
aria-labelledby="11e80ee6d6b54171a267b22fe77c6ea8-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@11e80ee6d6b54171a267b22fe77c6ea8" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@11e80ee6d6b54171a267b22fe77c6ea8/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="11e80ee6d6b54171a267b22fe77c6ea8-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@11e80ee6d6b54171a267b22fe77c6ea8-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@11e80ee6d6b54171a267b22fe77c6ea8-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><p>You can also answer problems using scientific notation. Try entering \(3 \times 10^8\) by typing "3*10^8" into the box below:</p>
<p>What is the speed of light (in m/s)?</p>
<div id="formulaequationinput_11e80ee6d6b54171a267b22fe77c6ea8_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_11e80ee6d6b54171a267b22fe77c6ea8_2_1" id="input_11e80ee6d6b54171a267b22fe77c6ea8_2_1" data-input-id="11e80ee6d6b54171a267b22fe77c6ea8_2_1" value="" aria-describedby="status_11e80ee6d6b54171a267b22fe77c6ea8_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_11e80ee6d6b54171a267b22fe77c6ea8_2_1"/>
<span class="status unanswered" id="status_11e80ee6d6b54171a267b22fe77c6ea8_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_11e80ee6d6b54171a267b22fe77c6ea8_2_1" class="answer"/>
<div id="input_11e80ee6d6b54171a267b22fe77c6ea8_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_11e80ee6d6b54171a267b22fe77c6ea8" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_11e80ee6d6b54171a267b22fe77c6ea8">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="11e80ee6d6b54171a267b22fe77c6ea8-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="11e80ee6d6b54171a267b22fe77c6ea8-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="11e80ee6d6b54171a267b22fe77c6ea8-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-3" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@87dbd583cd284572a3550d63ed7f401c">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@87dbd583cd284572a3550d63ed7f401c" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_87dbd583cd284572a3550d63ed7f401c" class="problems-wrapper" role="group"
aria-labelledby="87dbd583cd284572a3550d63ed7f401c-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@87dbd583cd284572a3550d63ed7f401c" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@87dbd583cd284572a3550d63ed7f401c/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="87dbd583cd284572a3550d63ed7f401c-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@87dbd583cd284572a3550d63ed7f401c-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@87dbd583cd284572a3550d63ed7f401c-problem-progress"></div>
<div class="problem">
<div>
Some problems don't have numerical answers at all. Instead, you can enter a formula into the answer box. (Please note that when you enter a formula, you always need to explicitly denote multiplication using the "*" sign.) Try entering \(ma\) by typing "m*a" into the box below:
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><br/><span>Force =</span><div id="formulaequationinput_87dbd583cd284572a3550d63ed7f401c_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_87dbd583cd284572a3550d63ed7f401c_2_1" id="input_87dbd583cd284572a3550d63ed7f401c_2_1" data-input-id="87dbd583cd284572a3550d63ed7f401c_2_1" value="" aria-describedby="status_87dbd583cd284572a3550d63ed7f401c_2_1" size="40"/>
<span class="trailing_text" id="trailing_text_87dbd583cd284572a3550d63ed7f401c_2_1"/>
<span class="status unanswered" id="status_87dbd583cd284572a3550d63ed7f401c_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_87dbd583cd284572a3550d63ed7f401c_2_1" class="answer"/>
<div id="input_87dbd583cd284572a3550d63ed7f401c_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_87dbd583cd284572a3550d63ed7f401c" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_87dbd583cd284572a3550d63ed7f401c">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="87dbd583cd284572a3550d63ed7f401c-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="87dbd583cd284572a3550d63ed7f401c-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="87dbd583cd284572a3550d63ed7f401c-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-4" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7b4f9fdfff5a4dddab5c648d05d1715b">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7b4f9fdfff5a4dddab5c648d05d1715b" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_7b4f9fdfff5a4dddab5c648d05d1715b" class="problems-wrapper" role="group"
aria-labelledby="7b4f9fdfff5a4dddab5c648d05d1715b-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7b4f9fdfff5a4dddab5c648d05d1715b" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7b4f9fdfff5a4dddab5c648d05d1715b/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="7b4f9fdfff5a4dddab5c648d05d1715b-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7b4f9fdfff5a4dddab5c648d05d1715b-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7b4f9fdfff5a4dddab5c648d05d1715b-problem-progress"></div>
<div class="problem">
<div>
You can also include Greek letters in your answer. To create the symbol \(\Delta\), simply type "Delta"
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><br/><span>\(\Delta\):</span><div id="formulaequationinput_7b4f9fdfff5a4dddab5c648d05d1715b_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_7b4f9fdfff5a4dddab5c648d05d1715b_2_1" id="input_7b4f9fdfff5a4dddab5c648d05d1715b_2_1" data-input-id="7b4f9fdfff5a4dddab5c648d05d1715b_2_1" value="" aria-describedby="status_7b4f9fdfff5a4dddab5c648d05d1715b_2_1" size="40"/>
<span class="trailing_text" id="trailing_text_7b4f9fdfff5a4dddab5c648d05d1715b_2_1"/>
<span class="status unanswered" id="status_7b4f9fdfff5a4dddab5c648d05d1715b_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7b4f9fdfff5a4dddab5c648d05d1715b_2_1" class="answer"/>
<div id="input_7b4f9fdfff5a4dddab5c648d05d1715b_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_7b4f9fdfff5a4dddab5c648d05d1715b" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_7b4f9fdfff5a4dddab5c648d05d1715b">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7b4f9fdfff5a4dddab5c648d05d1715b-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7b4f9fdfff5a4dddab5c648d05d1715b-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7b4f9fdfff5a4dddab5c648d05d1715b-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-5" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@81d7378f11af42bab4dfdd5d080f3eb1">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@81d7378f11af42bab4dfdd5d080f3eb1" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_81d7378f11af42bab4dfdd5d080f3eb1" class="problems-wrapper" role="group"
aria-labelledby="81d7378f11af42bab4dfdd5d080f3eb1-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@81d7378f11af42bab4dfdd5d080f3eb1" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@81d7378f11af42bab4dfdd5d080f3eb1/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="81d7378f11af42bab4dfdd5d080f3eb1-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@81d7378f11af42bab4dfdd5d080f3eb1-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@81d7378f11af42bab4dfdd5d080f3eb1-problem-progress"></div>
<div class="problem">
<div>You can type lowercase Greek letters as well by spelling the letter name with a lowercase letter. If you would like a lowercase delta, type "delta"
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><br/><span>\(\delta\):</span><div id="formulaequationinput_81d7378f11af42bab4dfdd5d080f3eb1_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_81d7378f11af42bab4dfdd5d080f3eb1_2_1" id="input_81d7378f11af42bab4dfdd5d080f3eb1_2_1" data-input-id="81d7378f11af42bab4dfdd5d080f3eb1_2_1" value="" aria-describedby="status_81d7378f11af42bab4dfdd5d080f3eb1_2_1" size="40"/>
<span class="trailing_text" id="trailing_text_81d7378f11af42bab4dfdd5d080f3eb1_2_1"/>
<span class="status unanswered" id="status_81d7378f11af42bab4dfdd5d080f3eb1_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_81d7378f11af42bab4dfdd5d080f3eb1_2_1" class="answer"/>
<div id="input_81d7378f11af42bab4dfdd5d080f3eb1_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div></div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_81d7378f11af42bab4dfdd5d080f3eb1" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_81d7378f11af42bab4dfdd5d080f3eb1">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
<span class="problem-action-button-wrapper">
<button type="button" class="show problem-action-btn btn-default btn-small" aria-describedby="81d7378f11af42bab4dfdd5d080f3eb1-problem-title"><span class="icon fa fa-info-circle" aria-hidden="true"></span><span class="show-label">Show Answer</span></button>
</span>
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="81d7378f11af42bab4dfdd5d080f3eb1-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="81d7378f11af42bab4dfdd5d080f3eb1-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="81d7378f11af42bab4dfdd5d080f3eb1-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-6" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@92b5ba3ea5f94834a0a3208cd851c0be">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@92b5ba3ea5f94834a0a3208cd851c0be" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_92b5ba3ea5f94834a0a3208cd851c0be" class="problems-wrapper" role="group"
aria-labelledby="92b5ba3ea5f94834a0a3208cd851c0be-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@92b5ba3ea5f94834a0a3208cd851c0be" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@92b5ba3ea5f94834a0a3208cd851c0be/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="92b5ba3ea5f94834a0a3208cd851c0be-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@92b5ba3ea5f94834a0a3208cd851c0be-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@92b5ba3ea5f94834a0a3208cd851c0be-problem-progress"></div>
<div class="problem">
<div>
You can also include square root signs in your equations. Try entering \(2 \pi \sqrt{\frac{L}{g}}\) by typing "2*pi*sqrt(L/g)" into the box below.
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><br/><span>T:</span><div id="formulaequationinput_92b5ba3ea5f94834a0a3208cd851c0be_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_92b5ba3ea5f94834a0a3208cd851c0be_2_1" id="input_92b5ba3ea5f94834a0a3208cd851c0be_2_1" data-input-id="92b5ba3ea5f94834a0a3208cd851c0be_2_1" value="" aria-describedby="status_92b5ba3ea5f94834a0a3208cd851c0be_2_1" size="40"/>
<span class="trailing_text" id="trailing_text_92b5ba3ea5f94834a0a3208cd851c0be_2_1"/>
<span class="status unanswered" id="status_92b5ba3ea5f94834a0a3208cd851c0be_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_92b5ba3ea5f94834a0a3208cd851c0be_2_1" class="answer"/>
<div id="input_92b5ba3ea5f94834a0a3208cd851c0be_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div></div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_92b5ba3ea5f94834a0a3208cd851c0be" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_92b5ba3ea5f94834a0a3208cd851c0be">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="92b5ba3ea5f94834a0a3208cd851c0be-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="92b5ba3ea5f94834a0a3208cd851c0be-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="92b5ba3ea5f94834a0a3208cd851c0be-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-7" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7247547e21384933b98864c3e0f29f03">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7247547e21384933b98864c3e0f29f03" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_7247547e21384933b98864c3e0f29f03" class="problems-wrapper" role="group"
aria-labelledby="7247547e21384933b98864c3e0f29f03-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7247547e21384933b98864c3e0f29f03" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7247547e21384933b98864c3e0f29f03/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="7247547e21384933b98864c3e0f29f03-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7247547e21384933b98864c3e0f29f03-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@7247547e21384933b98864c3e0f29f03-problem-progress"></div>
<div class="problem">
<div>
You can also include exponentials and subscripts in your answer. Try entering \(N_0 e^{-\lambda t}\) by typing "N_0*exp(-lambda*t)" into the box below.
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><br/><span>N(t):</span><div id="formulaequationinput_7247547e21384933b98864c3e0f29f03_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_7247547e21384933b98864c3e0f29f03_2_1" id="input_7247547e21384933b98864c3e0f29f03_2_1" data-input-id="7247547e21384933b98864c3e0f29f03_2_1" value="" aria-describedby="status_7247547e21384933b98864c3e0f29f03_2_1" size="40"/>
<span class="trailing_text" id="trailing_text_7247547e21384933b98864c3e0f29f03_2_1"/>
<span class="status unanswered" id="status_7247547e21384933b98864c3e0f29f03_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_7247547e21384933b98864c3e0f29f03_2_1" class="answer"/>
<div id="input_7247547e21384933b98864c3e0f29f03_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_7247547e21384933b98864c3e0f29f03" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_7247547e21384933b98864c3e0f29f03">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7247547e21384933b98864c3e0f29f03-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7247547e21384933b98864c3e0f29f03-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="7247547e21384933b98864c3e0f29f03-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-8" data-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@2c00d53525104d638b5e890f27efb8f6">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-usage-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@2c00d53525104d638b5e890f27efb8f6" data-block-type="problem" data-graded="False" data-course-id="course-v1:MITx+3.012S.1x+1T2019" data-has-score="True" data-request-token="c961125c852711ef8f57023e4242adeb" data-init="XBlockToXModuleShim" data-runtime-class="LmsRuntime" data-runtime-version="1">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_2c00d53525104d638b5e890f27efb8f6" class="problems-wrapper" role="group"
aria-labelledby="2c00d53525104d638b5e890f27efb8f6-problem-title"
data-problem-id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@2c00d53525104d638b5e890f27efb8f6" data-url="/courses/course-v1:MITx+3.012S.1x+1T2019/xblock/block-v1:MITx+3.012S.1x+1T2019+type@problem+block@2c00d53525104d638b5e890f27efb8f6/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="2c00d53525104d638b5e890f27efb8f6-problem-title" aria-describedby="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@2c00d53525104d638b5e890f27efb8f6-problem-progress" tabindex="-1">
problem
</h3>
<div class="problem-progress" id="block-v1:MITx+3.012S.1x+1T2019+type@problem+block@2c00d53525104d638b5e890f27efb8f6-problem-progress"></div>
<div class="problem">
<div>
You can also enter trigonometric expressions. Try entering \(sin^2(\theta)\) by typing "sin(theta)^2" into the box below.
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><br/><div id="formulaequationinput_2c00d53525104d638b5e890f27efb8f6_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<input type="text" name="input_2c00d53525104d638b5e890f27efb8f6_2_1" id="input_2c00d53525104d638b5e890f27efb8f6_2_1" data-input-id="2c00d53525104d638b5e890f27efb8f6_2_1" value="" aria-describedby="status_2c00d53525104d638b5e890f27efb8f6_2_1" size="40"/>
<span class="trailing_text" id="trailing_text_2c00d53525104d638b5e890f27efb8f6_2_1"/>
<span class="status unanswered" id="status_2c00d53525104d638b5e890f27efb8f6_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_2c00d53525104d638b5e890f27efb8f6_2_1" class="answer"/>
<div id="input_2c00d53525104d638b5e890f27efb8f6_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="problem" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_2c00d53525104d638b5e890f27efb8f6" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_2c00d53525104d638b5e890f27efb8f6">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="2c00d53525104d638b5e890f27efb8f6-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="2c00d53525104d638b5e890f27efb8f6-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="2c00d53525104d638b5e890f27efb8f6-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="False">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved