题目内容
我国研制并成功发射的“嫦娥二号”探测卫星,在距月球表面高度为h的轨道上做匀速圆周运动,运行的周期为T。若以R表示月球的半径,则( )
A.卫星运行时的向心加速度为![]() |
B.卫星运行时的线速度为![]() |
C.物体在月球表面自由下落的加速度为![]() |
D.月球的第一宇宙速度为![]() |
BD
试题分析:
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651105800.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651136738.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651152645.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651011825.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651105800.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651183914.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000651199703.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.卫星运行时的向心加速度为![]() |
B.卫星运行时的线速度为![]() |
C.物体在月球表面自由下落的加速度为![]() |
D.月球的第一宇宙速度为![]() |