1、如图所示，质量均匀分布的薄圆盘，质量为m，半径为R，轴O与圆盘所在面垂直，且通过圆心，则圆盘对该轴O的的转动惯量是<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/7e7becd1e61f4a63b9131512754c10f4.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/b7879f7377c64d3e85868ea0dbfec71e.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/263ab867d6ec4c209bcc109ff27c4cd5.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/44592dde9ecf4d059307bcf4eb75d66f.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/4ceb4527c74046378f2ba87e4d779d06.png" />

如图所示电路的逻辑表达式F=（ ）。<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/8655693a417e4e43a32e0732ed533c96.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/beda73211aea49f082d9137fd4eb0526.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/7388c99ee0824f20bcf85893934a2f6a.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/9a5c81e78b344c79a9389e932a7f55ce.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/82193a9a030243728012b02e15718987.png" />

一质点做简谐振动，10s内做100次全振动，t=0时x=0，且向x轴负方向运动，假设振动的振幅为A，则质点的振动方程为 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/31541ef769f84ce5b899695b0b63dc2e.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/c51c0a1b42b34115baff1283f9cc2c94.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/1b791b9008d548f59bdf97e56d1dbb80.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/a57331230a764bfa9e8f98740253fcad.png" />

设A=<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/bc546fc03fdb4ba3b7e6b144b6371d7f.png" />，B=Р(Р(A)) 下列（ ）表达式不成立。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/6e615703da60435893f9e9a9273e12e5.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/64c831067d054e71a6c76f43849d450d.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/72023a5250e44c12b98923044194f13d.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c48e039a739c4502830eee7ae0ac1678.png" />

在康普顿效应实验中，若X射线散射光波长是入射光波长的1.2倍，则入射光光子能量<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/5ccca22180454a0ebbf930aae19a66c7.png" />与散射光光子能量<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/3d9cfb3a752d470580e4af52ee4d17f1.png" />之比<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202004/5d1fc90964e64ee0bac62f0bf893db96.png" />为 A: 1.6 B: 1.2 C: 2.0 D: 0.8