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 92n6k6qjif wm1m *g,w e5 ibs2 r7p 7oc+;ci jqy(9bi5yf dB when fired simultaneously at a certain place, what will be the sousp2(5or9; cfii yy7c 7j+b ibqnd level if only one is exploded? [Hint: Add intensities, not dB’s.]    dB

参考答案: 92±2%


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