本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理
[问答题]
Figure 12–32 shows various positions of a child 8opet.3u ren. in motion on a swing. A eb9kcv jibm09r,v4flq j2 1 0gmonitor is blowing a whistle in front of the child on the ground. At which position, A through E, will the child hear the hi b41bi02 9rjv e0 jk9mgfvcql, ghest frequency for the sound of the whistle? Explain 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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