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13.地球半徑為 R,表面的重力場強度為 g,今欲將一物鉛直上拋,使能脫離地球束縛而飛向無窮遠處,則拋出初速至少為: (A) (B) (C) (D) (E)
問題詳情
13.地球半徑為 R,表面的重力場強度為 g,今欲將一物鉛直上拋,使能脫離地球束縛而飛向無窮遠處,則拋出初速至少為:
(A)
(B)
(C)
(D)
(E)
參考答案
答案:B
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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