gc textbook chapter 12 Sound (id: 7b805c64f)

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]
A person standing a certain distance frah,o wd(aa x u80gl:s8om an airplane wittf/xeqb b4m7i7 vhtxg+i:2z.8o: y w vh four equally noisy jet engines is experiencing a sound level bordering on pain, 120 dB. What sound level would this person experience if the captg77eib / vb2f+iyh.8 4 zo:wtvt mxxq:ain shut down all but one engine? [Hint: Add intensities, not dB’s.]    dB

参考答案: 114±2%


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