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近地卫星和同步卫星

> “神州六号”飞船在圆形轨道上正常运行的过程中，飞船距地面的高度为h，已知地球的半径为R，地球表面的重力加速度为g，则质量为m的宇航员 A．受到地球的吸引力为零 B．他无法用弹簧秤去测力 C．受到地球的吸引力为mgR/（R+h）2 D．绕地球一周的时间为

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发布时间：2024-09-07

“神州六号”飞船在圆形轨道上正常运行的过程中，飞船距地面的高度为h，已知地球的半径为R，地球表面的重力加速度为g，则质量为m的宇航员

A．受到地球的吸引力为零

B．他无法用弹簧秤去测力

C．受到地球的吸引力为mgR/（R+h）²

D．绕地球一周的时间为

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