gc textbook chapter 12 Sound (id: d88fdfa7e)

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]
What are the lowest and highest frequencies that ar.as 32ga0 d :gn m(szuphio:-n ear ca6joahz wl nn)5r/7*h0ji zt: kn detect when the sound level is 3wh6zki/jonj7ln 5*: t)zh0ar0 dB? (See Fig. 12–6.)

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