小球在穿过地心的隧道内运动问题(地球是均匀球体,半径为R,密度为P,无任何阻力)看到爱问上面,别人问的类似问题有这样一个解答:假设地球是均匀球体,半径为R,密度为P,那么总质量M=4/3*π*R^3
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![小球在穿过地心的隧道内运动问题(地球是均匀球体,半径为R,密度为P,无任何阻力)看到爱问上面,别人问的类似问题有这样一个解答:假设地球是均匀球体,半径为R,密度为P,那么总质量M=4/3*π*R^3](/uploads/image/z/8393621-5-1.jpg?t=%E5%B0%8F%E7%90%83%E5%9C%A8%E7%A9%BF%E8%BF%87%E5%9C%B0%E5%BF%83%E7%9A%84%E9%9A%A7%E9%81%93%E5%86%85%E8%BF%90%E5%8A%A8%E9%97%AE%E9%A2%98%28%E5%9C%B0%E7%90%83%E6%98%AF%E5%9D%87%E5%8C%80%E7%90%83%E4%BD%93%2C%E5%8D%8A%E5%BE%84%E4%B8%BAR%2C%E5%AF%86%E5%BA%A6%E4%B8%BAP%2C%E6%97%A0%E4%BB%BB%E4%BD%95%E9%98%BB%E5%8A%9B%29%E7%9C%8B%E5%88%B0%E7%88%B1%E9%97%AE%E4%B8%8A%E9%9D%A2%2C%E5%88%AB%E4%BA%BA%E9%97%AE%E7%9A%84%E7%B1%BB%E4%BC%BC%E9%97%AE%E9%A2%98%E6%9C%89%E8%BF%99%E6%A0%B7%E4%B8%80%E4%B8%AA%E8%A7%A3%E7%AD%94%EF%BC%9A%E5%81%87%E8%AE%BE%E5%9C%B0%E7%90%83%E6%98%AF%E5%9D%87%E5%8C%80%E7%90%83%E4%BD%93%2C%E5%8D%8A%E5%BE%84%E4%B8%BAR%2C%E5%AF%86%E5%BA%A6%E4%B8%BAP%2C%E9%82%A3%E4%B9%88%E6%80%BB%E8%B4%A8%E9%87%8FM%3D4%2F3%2A%CF%80%2AR%5E3)
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