gc textbook chapter 12 Sound (id: ff0483c4b)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 IB物理学

[填空题]
A bat flies toward a b 7fgvu-w-0/ogiljh 1z6f(nl moth at speed 6.5 m.la:w0 noor0dan e 96h/s while the moth is flying toward the bat at speed 5lrd 0e0. :6on wa9nhao m/s The bat emits a sound wave of 51.35 kHz. What is the frequency of the wave detected by the bat after that wave reflects off the moth?    kHz

参考答案: 54.9±2%


本题详细解析:

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