You live on a busy street, but as a music lover, you want
Chapter 16, Problem 16.18(choose chapter or problem)
You live on a busy street, but as a music lover, you want to reduce the traffic noise. (a) If you install special sound-reflecting windows that reduce the sound intensity level (in dB) by 30 dB, by what fraction have you lowered the sound intensity (in W/m2 )? (b) If, instead, you reduce the intensity by half, what change (in dB) do you make in the sound intensity level?
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