为什么计算第一宇宙速度时重力等于万有引力,不应该是万有引力等于�心力和重力的合力吗? 知乎 Template




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tomski为什么计算第一宇宙速度时重力等于万有引力,不应该是万有引力等于�心力和重力的合力吗? 知乎 coloring