本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 通用国际物理
[单选题]
A mass vibrates back6rjj jyew-l kmf5,: a; and forth frmzr) -3dq)o8fl n sz2lom the free end of an ideal spring of spring constant 20.0 N/m widz2sn)-) fo rqzl3l8mth an amplitude of 0.250 m. What is the maximum kinetic energy of this vibrating mass?
A. $2.50 \; J$
B. $1.25 \; J$
C. $0.625 \; J$
D. It is impossible to give an answer since kinetic energy cannot be determined without knowing the object's mass.
参考答案: C
本题详细解析:
暂无
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