問題詳情
75.已知比重 4 的圓球在水中沉降之終端速度為 12 cm/s，若粒徑相同，比重 3 的圓球在水中沉降之終端速度為若干cm/s？（假設層流）
(A) 4
(B) 6
(C) 8
(D) 9
(A) 4
(B) 6
(C) 8
(D) 9
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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