問題詳情

41. A wire of length L, Young’s modulus Y, and cross-sectional area A is stretched elastically byan amount ∆L . It behaves as a spring by using the Hooke’s law. What is the work done instretching the wire by an amount ∆L?
(A)


(B)


(C)


(D)


(E)

參考答案

答案：D
難度：計算中-1
書單：沒有書單，新增