gc textbook chapter 12 Sound (id: cc9bd6c63)

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 two firecrackers produce a sound level of 95 dB when f;x+e0ul1d rb. f thk6f *czz:gired s9g/xll9tb .j vy9 kk,fimultaneously at a certain place, what will be the sound level if o/f,xtv9blyl g j9k. k9nly one is exploded? [Hint: Add intensities, not dB’s.]    dB

参考答案: 92±2%


本题详细解析:

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