题目内容
如果把水星和金星绕太阳的运动视为匀速圆周运动,从水星与金星在一条直线上开始计时,若天文学家测得在相同时间内水星转过的角度为
,金星转过的角度为
(
、
均为锐角),则由此条件不可能求得
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250001444404398.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144377330.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144393358.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144377330.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144393358.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250001444404398.jpg)
A.水星和金星的质量之比 |
B.水星和金星到太阳的距离之比 |
C.水星和金星绕太阳运动的周期之比 |
D.水星和金星绕太阳运动的向心加速度大小之比 |
A
试题分析:根据在相同时间内水星转过的角度为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144377330.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144393358.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144487649.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144502929.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144533866.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144549614.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144565856.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000144580723.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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