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範例:彈力作功與F-x圖

壓縮彈簧x需施力F,作功W,則在彈性限度內再壓縮x,需再作功多少？ (A)W(B)2W (C)3W (D)Fx(E)3Fx/2。【70夜大】


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Posted in 功與變力作功.

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By admin – 2009 年 03 月 25 日

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