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近地卫星和同步卫星

> 下列说法中正确的是（） A．人造地球卫星的轨道可以与地球表面上某一纬度线(非赤道)是共面同心圆 B．第一宇宙速度是人造卫星绕地球运行所需的最大发射速度 C．地球同步卫星的高度和速率是确定的值 D．宇宙飞船进入轨道做匀速圆周运动时，飞船内的物体处于平衡状态，即合外力为零

问题：

发布时间：2024-09-09

下列说法中正确的是（）

A．人造地球卫星的轨道可以与地球表面上某一纬度线(非赤道)是共面同心圆

B．第一宇宙速度是人造卫星绕地球运行所需的最大发射速度

C．地球同步卫星的高度和速率是确定的值

D．宇宙飞船进入轨道做匀速圆周运动时，飞船内的物体处于平衡状态，即合外力为零

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