- A.A→C,压强增大,内能增大
- B.A→C,压强减小,内能不变
- C.C→B,压强增大,内能增大
- D.C→B,压强减小,内能不变
- A.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593f313e229115.png" width="148" height="15" alt="1726593f313e229115.png">
- B.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593f3a3d943589.png" width="148" height="15" alt="1726593f3a3d943589.png">
- C.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/172700400112137555.png" width="148" height="15" alt="172700400112137555.png">
- D.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/172700400a08271030.png" width="36" height="15" alt="172700400a08271030.png">最小,其余无法比较
- A.a
- B.b
- C.c
- D.d
- A.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/17270040c25c469536.png" width="73" height="15" alt="17270040c25c469536.png">
- B.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/17270040cf9f009756.png" width="73" height="15" alt="17270040cf9f009756.png">
- C.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/17270040dd82307318.png" width="73" height="15" alt="17270040dd82307318.png">
- D.<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/17270040e645649227.png" width="73" height="15" alt="17270040e645649227.png">
- A.速度大小为<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e4633341182.png" width="39" height="27" alt="1726593e4633341182.png">
- B.周期为4<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e4f75085248.png" width="41" height="27" alt="1726593e4f75085248.png">
- C.动能为<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e5874520777.png" width="27" height="23" alt="1726593e5874520777.png">
- D.重力为0
- A.<br><img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e79b0826413.png" width="97" height="102" alt="1726593e79b0826413.png">
- B.<br><img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e8210080198.png" width="98" height="101" alt="1726593e8210080198.png">
- C.<br><img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e8a7d622007.png" width="97" height="101" alt="1726593e8a7d622007.png">
- D.<br><img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1726593e9397916103.png" width="100" height="102" alt="1726593e9397916103.png">
- A.波长为<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/1727004030ba130457.png" width="14" height="23" alt="1727004030ba130457.png">
- B.动量为<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/172700403a4d712065.png" width="17" height="25" alt="172700403a4d712065.png">
- C.能量为eU
- D.频率为<img src="https://ke.youshiyun.com.cn/files/course/2022/11-24/17270040425d678270.png" width="14" height="25" alt="17270040425d678270.png">
- A.牛顿
- B.开普勒
- C.伽利略
- D.笛卡尔
- A.选用了铜质金属弦
- B.磁体的N极与S极装反了
- C.线圈的匝数多绕了若干圈
- D.金属弦与磁体的间隙过小