Nuclear Energy: Science, Systems and Society

<div class="xblock xblock-public_view xblock-public_view-vertical" data-init="VerticalStudentView" data-runtime-version="1" data-request-token="453acc9c7d8311ecb28d02af4ae4f353" data-block-type="vertical" data-graded="True" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="False" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@2a41bfdf5c0c44d99c9d13eab3fabebe"> <h2 class="hd hd-2 unit-title">1.2.8. Required Assessment</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@5305cbea0c8d42bca535b47de4ae2daa"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-init="XBlockToXModuleShim" data-runtime-version="1" data-request-token="453acc9c7d8311ecb28d02af4ae4f353" data-block-type="problem" data-graded="True" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="True" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@5305cbea0c8d42bca535b47de4ae2daa"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_5305cbea0c8d42bca535b47de4ae2daa" class="problems-wrapper" role="group" aria-labelledby="5305cbea0c8d42bca535b47de4ae2daa-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@5305cbea0c8d42bca535b47de4ae2daa" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@5305cbea0c8d42bca535b47de4ae2daa/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="5305cbea0c8d42bca535b47de4ae2daa-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@5305cbea0c8d42bca535b47de4ae2daa-problem-progress" tabindex="-1"> Assessment 1 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@5305cbea0c8d42bca535b47de4ae2daa-problem-progress"></div> <div class="problem"> <div> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_5305cbea0c8d42bca535b47de4ae2daa_2_1" class="inputtype formulaequationinput"> <div class="unanswered"> <label class="problem-group-label" for="input_5305cbea0c8d42bca535b47de4ae2daa_2_1" id="label_5305cbea0c8d42bca535b47de4ae2daa_2_1">What is the decay constant of \(^{11}Be\) in units of \(1/s\)? Indicate 2 digits after the decimal point (e.g. in the form \(x.yz\))</label> <input type="text" name="input_5305cbea0c8d42bca535b47de4ae2daa_2_1" id="input_5305cbea0c8d42bca535b47de4ae2daa_2_1" data-input-id="5305cbea0c8d42bca535b47de4ae2daa_2_1" value="" aria-describedby="status_5305cbea0c8d42bca535b47de4ae2daa_2_1" size="20"/> <span class="trailing_text" id="trailing_text_5305cbea0c8d42bca535b47de4ae2daa_2_1"/> <span class="status unanswered" id="status_5305cbea0c8d42bca535b47de4ae2daa_2_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> <p id="answer_5305cbea0c8d42bca535b47de4ae2daa_2_1" class="answer"/> <div id="input_5305cbea0c8d42bca535b47de4ae2daa_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="Assessment 1" /> <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_5305cbea0c8d42bca535b47de4ae2daa" > <span class="submit-label">Submit</span> </button> <div class="submission-feedback" id="submission_feedback_5305cbea0c8d42bca535b47de4ae2daa"> <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="5305cbea0c8d42bca535b47de4ae2daa-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="5305cbea0c8d42bca535b47de4ae2daa-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="5305cbea0c8d42bca535b47de4ae2daa-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="True"> <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-1" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@362a68e29b84481184a7fe460c8bd77c"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-init="XBlockToXModuleShim" data-runtime-version="1" data-request-token="453acc9c7d8311ecb28d02af4ae4f353" data-block-type="problem" data-graded="True" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="True" data-runtime-class="LmsRuntime" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@362a68e29b84481184a7fe460c8bd77c"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_362a68e29b84481184a7fe460c8bd77c" class="problems-wrapper" role="group" aria-labelledby="362a68e29b84481184a7fe460c8bd77c-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@362a68e29b84481184a7fe460c8bd77c" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@362a68e29b84481184a7fe460c8bd77c/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="2" data-attempts-used="0" data-content=" <h3 class="hd hd-3 problem-header" id="362a68e29b84481184a7fe460c8bd77c-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@362a68e29b84481184a7fe460c8bd77c-problem-progress" tabindex="-1"> Assessment 2 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@362a68e29b84481184a7fe460c8bd77c-problem-progress"></div> <div class="problem"> <div> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_362a68e29b84481184a7fe460c8bd77c_2_1" class="inputtype formulaequationinput"> <div class="unanswered"> <label class="problem-group-label" for="input_362a68e29b84481184a7fe460c8bd77c_2_1" id="label_362a68e29b84481184a7fe460c8bd77c_2_1">What is the decay constant of \(^{14}C\) in units of \(1/s\)? Indicate the answer in terms of mantissa \((M)\) and exponent \((E)\) of the expression \(M \times 10^{E}\). Give your answer with just two significant digits, both for the mantissa (first box) and the exponent (second box)</label> <input type="text" name="input_362a68e29b84481184a7fe460c8bd77c_2_1" id="input_362a68e29b84481184a7fe460c8bd77c_2_1" data-input-id="362a68e29b84481184a7fe460c8bd77c_2_1" value="" aria-describedby="status_362a68e29b84481184a7fe460c8bd77c_2_1" size="20"/> <span class="trailing_text" id="trailing_text_362a68e29b84481184a7fe460c8bd77c_2_1"/> <span class="status unanswered" id="status_362a68e29b84481184a7fe460c8bd77c_2_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> <p id="answer_362a68e29b84481184a7fe460c8bd77c_2_1" class="answer"/> <div id="input_362a68e29b84481184a7fe460c8bd77c_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 class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div id="formulaequationinput_362a68e29b84481184a7fe460c8bd77c_3_1" class="inputtype formulaequationinput"> <div class="unanswered"> <input type="text" name="input_362a68e29b84481184a7fe460c8bd77c_3_1" id="input_362a68e29b84481184a7fe460c8bd77c_3_1" data-input-id="362a68e29b84481184a7fe460c8bd77c_3_1" value="" aria-describedby="status_362a68e29b84481184a7fe460c8bd77c_3_1" size="20"/> <span class="trailing_text" id="trailing_text_362a68e29b84481184a7fe460c8bd77c_3_1"/> <span class="status unanswered" id="status_362a68e29b84481184a7fe460c8bd77c_3_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> <p id="answer_362a68e29b84481184a7fe460c8bd77c_3_1" class="answer"/> <div id="input_362a68e29b84481184a7fe460c8bd77c_3_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="Assessment 2" /> <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_362a68e29b84481184a7fe460c8bd77c" > <span class="submit-label">Submit</span> </button> <div class="submission-feedback" id="submission_feedback_362a68e29b84481184a7fe460c8bd77c"> <span class="sr">Some problems have options such as save, reset, hints, or show answer. 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