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【題組】12.有一人造衛星的週期為 T,當此衛星移到新的軌道上時,其所向心力變為原來的一半,則此衛星的週期變為 (A) (B) (C) (D) (E) T 。
問題詳情
【題組】
12.有一人造衛星的週期為 T,當此衛星移到新的軌道上時,其所向心力變為原來的一半,則此衛星的週期變為
(A)
(B)
(C)
(D)
(E)
T 。
參考答案
答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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Despite the beliefs of some 20 million people, there is no evidence that accidentsare more likely to
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【題組】25. (A) approximately (B) appropriately (C) appealingly (D) apprehensively
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