题目内容
已知地球质量为M,半径为R,自转周期为T,地球同步卫星质量为m,引力常量为G,有关同步卫星,下列表述正确的是( )
A.卫星距地面的高度为![]() | B.卫星运行时受到的向心力大小为![]() |
C.卫星的运行速度大于第一宇宙速度 | D.卫星运行的向心加速度小于地球表面的重力加速度 |
AD
试题分析: 万有引力提供向心力
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250047589981401.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250047590141003.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004759029882.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004759045783.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004759061959.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004759076169.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004759107730.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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