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15. 對均質材料而言,若E為其彈性係數,G為其剪力彈性係數,則下列何者是不可能存在的?30°100kgf125(A) E=2.4G (B) E=2.6G (C) E=2.9G (D) E=3.5G。
問題詳情
15. 對均質材料而言,若E為其彈性係數,G為其剪力彈性係數,則下列何者是不可能存在的?30°100kgf125
(A) E=2.4G
(B) E=2.6G
(C) E=2.9G
(D) E=3.5G。
參考答案
答案:D
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14. 有一力F=100kgf如下圖所示,若分解成一水平分力X與一垂直分力Y,其大小各為若干? (A)X=75.89kgf,Y=67.35 kgf (B) X=79.23kgf,Y=60.27 kgf
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