题目内容
2012年7月26日,一个国际研究小组借助于智利的“甚大望远镜”,观测到了一组双星系统,它们绕两者连接线上的某点
做匀速圆周运动,如图所示,此双星系统中体积较小成员能“吸食”另一颗体积较大星体表面物质,达到质量转移的目的,假设在“吸食”过程中两者球心之间的距离保持不变,则在该过程中
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019318561969.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931840292.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019318561969.jpg)
A.它们做圆周运动的万有引力保持不变 |
B.它们做圆周运动的角速度不断变大 |
C.体积较大星体圆周运动轨迹半径变大,线速度也变大 |
D.体积较大星体圆周运动轨迹半径变大,线速度变小 |
C
试题分析:设体积较小的星体质量为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931872362.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931887292.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931918386.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931934319.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931950279.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931965434.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019319811126.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931965434.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001932012302.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931872362.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019320431385.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931918386.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019321371435.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019321521034.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001932168473.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931950279.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001932215307.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250019322301016.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001932262581.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931965434.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001931934319.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001932308527.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001932324262.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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