题目内容
2013年12月2日1时30分,我国成功发射了“嫦娥二号”探月卫星,12月6日17时47分顺利进入环月轨道.若该卫星在地球、月球表面的重力分别为G1、G2,已知地球半径为R1,月球半径为R2,地球表面处的重力加速度为g,则( )
A.月球表面处的重力加速度为![]() |
B.月球与地球的质量之比为![]() |
C.卫星沿近月球表面轨道上做匀速圆周运动的周期为![]() |
D.月球与地球的第一宇宙速度之比为![]() |
AC
试题分析:设月球表面重力加速度为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450815306.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450831603.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450846558.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450862659.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450893649.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450909864.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004450940615.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250044509551378.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250044509871126.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250044510023158.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004451018514.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250044510331427.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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