SoundSoundSoundSound (id: 18f86223e)

本题目来源于试卷: SoundSoundSoundSound，类别为 IB物理学

[问答题]
Figure 12–32 shows various positions of a child in motds zjv n+/pg2ib)4sk:ion on a swing. At x9rb l81f,eh monitor is blowing a whistle in front of the child on the ground. At which position, A through E, will the child hear the highest frequency for the sound of the whistle? Ex8blh1r9fet x ,plain your reasoning.

参考答案:
The highest frequency of sound will be heard at position C, while the child is swinging forward.  Assuming the child is moving with SHM, then the highest speed is at the equilibrium point, point C.  And to have an increased pitch, the relative motion of the source and detector must be towards each other.  The child would also hear the lowest frequency of sound at point C, while swinging backwards.


本题详细解析: 暂无

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