Physics Unit11: Vibrations and Waves (id: 025ca19d7)

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]
What is the wave speed if a wave has a f (b,lj6zbv7v crequency opwi,cq;+ cuq.dlrk9tf*a w; fd89t 7nf 12 Hz and a wavelength of 3.0 m8cf* a.t qp rt;l;7 infquw,9+ck 9wdd?

A. 4.0 m/s
B. 9.0 m/s
C. 15 m/s
D. 36 m/s


参考答案:  D


本题详细解析: 暂无

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