gc textbook chapter 12 Sound (id: 9f88dcfe8)

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]
If the amplitude of a 57 .fgjb8yp a6jqfqyc4c/zm.sound wave is tripled, (a) by what f1ivh s ;chf.r2.pg u+trh jd9c9*+cc rw 0qc)oactor will the intensity increase? Increase by a ffc+c w ij1 ortpc;s0cuhv*q9 9hr+gch2.d).r actor of    (b) By how many dB will the sound level increase?    dB

参考答案:
空格1: 9±2%  空格2: 9.5±2% 


本题详细解析:

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