gc textbook chapter 12 Sound (id: 9bc8708c8)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理

[填空题]
A bat at rest sends out ultrasoni))n w8-v oj4 jrn8*p bhuk/yj6iw q3zxc sound waves at 50.0 kHz and receives them +sa/g fqx, dk 17h6qjmreturned from an object moving directly away dq,s+q1 mxg f7h/6ka jfrom it at 25 m/s What is the received sound frequency?    $ \times10^{ 4}$ Hz

参考答案: 4.32±2%


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