试题与答案

一弹簧振子作简谐振动,当位移为振幅的一半时,其动能为总能量的()。 A.1/4  B

题型:单项选择题

题目:

一弹簧振子作简谐振动,当位移为振幅的一半时,其动能为总能量的()。

A.1/4 

B.1/2 

C. 

D.3/4

答案:

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