题目内容
设想某登月飞船贴近月球表面绕月球做匀速圆周运动,测得其运动周期为T.飞船在月球上着陆后,航天员利用一摆长为L的单摆做简谐运动,测得单摆振动周期为T0,已知引力常量为G.根据上述已知条件,可以估算的物理量有
A.月球的质量 | B.飞船的质量 | C.月球到地球的距离 | D.月球的自转周期 |
A
试题分析:登月飞船贴近月球表面绕月运动,轨道半径等于月球半径。根据单摆周期公式
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004114271737.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004114287756.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250041143021068.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004114318685.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250041143341260.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250041143491511.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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