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单选题 两个同向同频率的简谐振动,他们的相位差 
则合振动的振幅为( )
A. 
B. 
C. 
D. 
学科：大学物理A1
时间：2023-06-17 11:43:03
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题目1单选题
两个同向同频率的简谐振动,他们的相位差 <img src="https://tihai-oss-cloud.itihey.com/img/4ef1cb2c3635f38ef557ca572c9b9938.png">则合振动的振幅为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/b9f6a9ade31faadb808441fe0feb9c5a.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/e71f386ce1a4a44d73ed373ca15cc186.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/8761822ba3a8974707cd22d7d4fcb60a.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/5e29f35075c7f4e21ae00a4c9b4bf195.png">
题目2单选题
两个同方向同频率的简谐振动,其振动表达式分别为:<img src="https://tihai-oss-cloud.itihey.com/img/d71df6c71d515bf53f0dc98dab5dbb9e.png">,<img src="https://tihai-oss-cloud.itihey.com/img/e94128e7d9b0c05c165f015817c15ec8.png">,则他们的合振动初相为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/425082603b347d0d0311160c96b74842.png">B. 0.6 <img src="https://tihai-oss-cloud.itihey.com/img/425082603b347d0d0311160c96b74842.png">C. 1.2 <img src="https://tihai-oss-cloud.itihey.com/img/425082603b347d0d0311160c96b74842.png">D. 2.4 <img src="https://tihai-oss-cloud.itihey.com/img/425082603b347d0d0311160c96b74842.png">
题目3单选题
一质点沿 <img src="https://tihai-oss-cloud.itihey.com/img/49484e170807f6ea8c286c21a4790035.png">轴作简谐振动,振动方程为 <img src="https://tihai-oss-cloud.itihey.com/img/d58b57d2686911e72fe4f0fa0d6b3fab.png">,从 <img src="https://tihai-oss-cloud.itihey.com/img/7e2547017f9334437d01cfdfa4b839e8.png">时刻起,到质点位置在 <img src="https://tihai-oss-cloud.itihey.com/img/c751a6882bab7223997aecf75be069db.png">处,且向 <img src="https://tihai-oss-cloud.itihey.com/img/49484e170807f6ea8c286c21a4790035.png">轴正方向运动的最短时间间隔为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/0ed4eaab53192164d44bab01161092fa.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/289bf92ba10d0d043446b263e297f433.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/ef4b5eec089060af59861f4248f7c57d.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/6fb951a5ca120638ff14c92016146a6d.png">
题目4单选题
有两个同向但频率不同的简谐振动,那么合振动的周期为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/e16699b3970acabd1e8e070fd4b4fd25.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/3218d27f1852820bb159f8d85903bfc9.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/79357d63a28735ce71a6eb7b507277a6.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/9ad5aa52d469550d01a8fd9298c8c774.png">
题目5单选题
两个同频率垂直的简谐振动,若它们的相位差为 <img src="https://tihai-oss-cloud.itihey.com/img/6c194ad7571ce430c6bd177ad3aa7ed5.png">,则合振动的振幅为( )A. <img src="https://tihai-oss-cloud.itihey.com/img/b9f6a9ade31faadb808441fe0feb9c5a.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/e71f386ce1a4a44d73ed373ca15cc186.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/1956b72087bbadd598d3159f98eb3b6c.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/6dc244613082caff035d7e62a0425921.png">
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