物理問題--(關於運動與力) - 運動
By Belly
at 2007-10-22T00:00
at 2007-10-22T00:00
Table of Contents
1.小龍用一雙筷子平行夾住鐵球,若鐵球質量為0.2公斤,鐵球與筷子間的靜摩擦係數為0.1,欲將鐵球夾起並維持靜止,則筷子羽球之間的作用力F至少應為多少?A.2B.1C.0.5D.0.2E.5公斤重2.一太空船在半徑為2R(R為地球半徑)的圓形軌道上環繞地球運動,船內有一位質量為80公斤的太空人阿龍,下列敘述何者正確
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運動
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By Dorothy
at 2007-10-26T11:23
at 2007-10-26T11:23
By Victoria
at 2007-10-22T16:38
at 2007-10-22T16:38
By Victoria
at 2007-10-22T06:01
at 2007-10-22T06:01
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