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我用三角函数计算出月亮距地只有6000公里,是哪里出错了?
如下 图1 所示: 根据上面的示意图进行计算: 地球半径 R 约为6371公里。 地心到月心的距离H约为384,400公里。 θ = arcsin(R/H) = arcsin(6371/384400) ≈ 0.95 ...
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