题目内容
我国发射的第一颗探月卫星“嫦娥一号”,进入距月面高度h的圆形轨道正常运行。已知月球半径为R,月球表面的重力加速度为g,万有引力常量为G,则嫦娥一号绕月球运行的周期为
B.嫦娥一号绕行的速度为![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736425655.png)
C.嫦娥一号绕月球运行的角速度为
D.嫦娥一号轨道处的重力加速度![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736472725.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736300663.png)
B.嫦娥一号绕行的速度为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736425655.png)
C.嫦娥一号绕月球运行的角速度为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736441855.png)
D.嫦娥一号轨道处的重力加速度
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736472725.png)
CD
试题分析:设月球质量为M,卫星质量为m,在月球表面上,万有引力约等于其重力有:
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736487847.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250047365032275.png)
由上二式算出g1、v、
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004736519308.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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