【理化】直線運動 - 運動

By Quanna
at 2006-07-10T00:00
at 2006-07-10T00:00
Table of Contents
下面有2個問題:1.擺長縮短,則單擺每次來回擺動時間也縮短?是對還錯?2.單擺於10秒內擺動50次,則此單擺的週期為何?(A)5秒(B)0.2秒(C)5次(D)0.2次答案是哪個勒?為什麼ㄚ?...Showmore
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運動
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By Ida
at 2006-07-11T13:11
at 2006-07-11T13:11
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