题目内容
已知万有引力常量G,在下列给出情景中,能根据测量数据求出月球密度的是( ).
A.在月球表面使一个小球做自由落体运动,测出落下的高度H和时间t |
B.发射一颗贴近月球表面绕月球做匀速圆周运动的飞船,测出飞船运行的周期T |
C.观察月球绕地球的圆周运动,测出月球的直径D和月球绕地球运行的周期T |
D.发射一颗绕月球做匀速圆周运动的卫星,测出卫星离月球表面的高度H和卫星的周期T |
B
试题分析:根据选项A的条件可以算出月球上的重力加速度
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003710131273.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003710162726.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003710177741.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037101931171.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825003710224941.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037102401419.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037102551485.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250037102871155.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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