You live on a busy street, but as a music lover, you want to reduce the traffic

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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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University Physics with Modern Physics

ISBN: 978-0321696861

13th edition

Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford

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