Physics Unit11: Vibrations and Waves (id: 0c62cc42d)

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 frequency of a 2.5 m4 u;pbc-h 4lea wave travu bjlsm dd6f8pxd 3byo/6(p/mf *y5.ueling at 1400 m/s?

A. $178 \; Hz$
B. $1.78 \; kHz$
C. $560 \; Hz$
D. $5.6 \; kHz$


参考答案:  C


本题详细解析: 暂无

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