問題詳情
19 設地球半徑 R，若將在地面重 360 牛頓的物體, 移至距地面 0.5R 的高空時,重量應為
(A)90
(B)160
(C)360
(D)0牛頓
(A)90
(B)160
(C)360
(D)0牛頓
參考答案
答案：B
難度：困難0.333333
統計：A(0),B(1),C(2),D(0),E(0)
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