题目内容
2012年6月16日18时37分,“神舟九号”飞船在酒泉卫星发射中心发射升空,不久后在预定的轨道上做匀速圆周运动并准备与在较高轨道上做匀速圆周运动的“天宫一号”空间站对接.相对于“天宫一号”,“神舟九号”的 ( )
A.线速度小 | B.向心加速度小 |
C.运行周期小 | D.角速度小 |
C
试题分析:根据公式
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836460903.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836476742.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836507848.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836523735.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250018365541088.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836601951.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836601931.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001836616831.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.线速度小 | B.向心加速度小 |
C.运行周期小 | D.角速度小 |