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

本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 国际高中通用物理

[单选题]
What is the wave speed if yen lh795r69 bt3ret o30nsupa wave has a frequency of 12 Hz anjscq7e; r 7fiogu+fl w7n fdq5 xh1296d a wavelength of 3.0 mq ;gurh7q sdo cxn j57f+fl6w729f1i e?

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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