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首先来看有关万有引力大小计算的一道习题.题目.一个半径为R、质量为M的均匀实心球体A,球心为O,在该球内紧靠内壁挖出一个半径为R/2的小球B后得到如图1所示的空腔体C(C为图1中阴影部分),在距球心O为L=2R的位置处有一质量为m的质点P求阴影部分球体与质点m之间的万有引力大小.
First of all, we have a problem about the calculation of the gravitation. Problem: A uniform solid sphere A with a radius R and a mass M, with the center of the sphere O, scooped a sphere with a radius of R / 2 next to the inner wall B, a cavity C (C is a shaded part in FIG. 1) is obtained as shown in FIG. 1, and a mass P of mass m is obtained at a position where L = 2R from the center O of the ball to obtain a shaded part sphere and a mass point m Gravity between the size.