gc textbook chapter 12 Sound (id: ff0483c4b)

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 flies toward a mox nz:x); , 8c*g1fa)ulrkkxh ath at speed 6.5 m/s while the kent4.okm/c1hesht(ejrj8 h- 8 :0 r imoth is flying toward the bat at speed 5 m/s The bat emits a sound wave of 51.35 kHz. What is the frequency of the wave detected by the bat afteroh.s-m0r (jct/48nti ehh8erj:1ke k that wave reflects off the moth?    kHz

参考答案: 54.9±2%


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