5. 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 30dB, by what fraction have you lowered the sound intensity lin (W/m?)?(b) If, instead, you reduce the intensity by half, what change (in dB) do you make in the soundintensity level?6. Small speakers A and B are driven in phase at 725 Hz by the same audio oscillator. Both speakersstart out 4.50 m from the listener, but speaker A is slowly moved away as in the figure.a) At what distance d will the sound from the speakers first produce destructive interference at thelistener's location?b) If A is moved even farther away than in part (a), at what distance d will the speakers next producedestructive interference at the listener's location?c) After A starts moving away from its original spot, at what distance d will the speakers first produceconstructive interference at the listener's location?4 50 m-B

(a) Given: The intensity level reduced is 30 dB.

5. 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 lin (W/m²)? (b) If, instead, you reduce the intensity by half, what change (in dB) do you make in the sound intensity level?

5. 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 lin (W/m²)? (b) If, instead, you reduce the intensity by half, what change (in dB) do you make in the sound intensity level?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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