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class="pointer">高中物理</a> <span>/</span> <a href="javascript:;">多選題</a> </div> <div id="7ursox8" class="m-wrap g-cw cfx"> <div id="qg2ydnw" class="w fl"> <div id="yv8nuff" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="9uw7ggt" class="question-block"> <div id="oimlys7" class="q-mc"> <h1 class="q-tit"> 1. <a href="/paper/view-5196644.shtml" class="ques-origin a-pointer" target="_blank"> (2023高二下·西寧期末) </a> 圖甲為某一列沿<em>x</em>軸傳播的簡諧橫波在<em>t</em>=0.5s時(shí)刻的波形圖，圖乙為參與波動(dòng)的質(zhì)點(diǎn)<em>M</em>的振動(dòng)圖象，則下列說法正確的是（　?。?p><img width="378" height="120" src="http://tikupic.21cnjy.com/2023/08/19/73/18/73182a11b86b610f52d94bd303f588bd_455x146.png" style="max-width:100%;"></p> </h1> <div id="jozro8o" class="exam-s"> <span id="ig2gqgo" class="op-item"><span id="2acuhqi" class="op-item-nut">A . </span><span id="rwyomfg" class="op-item-meat">該簡諧波的傳播速度為4m/s</span></span> <span id="dkdctdk" class="op-item"><span id="xc4zqpo" class="op-item-nut">B . </span><span id="pt686cb" class="op-item-meat">這列波的傳播方向沿<em>x</em>軸正方向</span></span> <span id="1nrw8pk" class="op-item"><span id="kdnfnfu" class="op-item-nut">C . </span><span id="mal2kn6" class="op-item-meat"><em>t</em>=2.0s時(shí)<em>M</em>質(zhì)點(diǎn)的振動(dòng)速度小于<em>Q</em>質(zhì)點(diǎn)的振動(dòng)速度</span></span> <span id="lohvn2o" class="op-item"><span id="gfhgg83" class="op-item-nut">D . </span><span id="9bulkjp" class="op-item-meat"><em>t</em>=2.0s時(shí)<em>P</em>質(zhì)點(diǎn)的位移為2cm</span></span> <span id="b3reisp" class="op-item"><span id="ycwocb1" class="op-item-nut">E . </span><span id="8gbxwtn" class="op-item-meat">從<em>t</em>=0時(shí)刻開始<em>P</em>質(zhì)點(diǎn)的振動(dòng)方程為<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmi%3Ey%3C%2Fmi%3E%3Cmo%3E%3D%3C%2Fmo%3E%3Cmn%3E2%3C%2Fmn%3E%3Cmn%3Es%3C%2Fmn%3E%3Cmn%3Ei%3C%2Fmn%3E%3Cmn%3En%3C%2Fmn%3E%3Cmn%3E%28%3C%2Fmn%3E%3Cmn%3E2%3C%2Fmn%3E%3Cmtext%3E%CF%80%3C%2Fmtext%3E%3Cmi%3Et%3C%2Fmi%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmfrac%3E%3Cmrow%3E%3Cmtext%3E%CF%80%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3Cmn%3E%29%3C%2Fmn%3E%3Cmn%3E%28%3C%2Fmn%3E%3Cmtext%3Ec%3C%2Fmtext%3E%3Cmtext%3Em%3C%2Fmtext%3E%3Cmn%3E%29%3C%2Fmn%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="6i3jkue" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="mbuc4yp" class="g-sd2">  <div style="background:#fff;padding:20px 0;margin-bottom:20px;text-align:center;"> <img 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