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万有引力定律及其应用

> 某天体绕一恒星沿椭圆轨道运动，当它们之间的距离为r时，相互间的万有引力为F，当它们间的距离为2r 时，相互间的万有引力 [ ] A．等于F B．大于F C．小于F D．不确定

问题：

发布时间：2024-09-08

某天体绕一恒星沿椭圆轨道运动，当它们之间的距离为r时，相互间的万有引力为F，当它们间的距离为2r 时，相互间的万有引力
[ ]
A．等于F
B．大于F
C．小于F
D．不确定

参考答案：

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