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7. 如圖(四)所示,有一力 F = 100 N 作用於 A 點,當此力分別對 A、B、C 及D 四點的力矩作用進行討論時,試問對何點產生的力矩最大? (A) A 點(B) B 點(C) C 點(D)
問題詳情
7. 如圖(四)所示,有一力 F = 100 N 作用於 A 點,當此力分別對 A、B、C 及D 四點的力矩作用進行討論時,試問對何點產生的力矩最大?
(A) A 點
(B) B 點
(C) C 點
(D) D 點
參考答案
答案:C
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6. 作用於物體中,力偶會給與物體一種旋轉效應或力偶矩,試問有關力偶的敘述,下列何者不正確?(A) 力偶可用一對單力平衡之,此對單力應為兩個大小相同、方向相反、作用線相異的作用力組成(B) 力偶可移至
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【題組】41. Which is RIGHT according to the reading?(A) “Them” in line 11 means the tabby cats.(B) Peopl
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【題組】14. (A) bifurcates (B) differentiates (C) ameliorates (D) alleviates
【題組】15. (A) providing (B) supposing (C) considering (D) concerning
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While some European countries, such as England and Germany, began to industrialize in theeighteenth