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= intensity of a sound that has a level 7

= intensity of a sound that has a level 7

College Physics
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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**Problem #4:** What sound intensity level in dB is produced by earphones that create an intensity of \(4.00 \times 10^{-2} \, \text{W/m}^2\)? **Problem #5:** What is the intensity of a sound that has a level \(7.00 \, \text{dB}\) lower than a \(4.00 \times 10^{-9} \, \text{W/m}^2\) sound? **Problem #6:** What is the intensity of a sound that is \(3.00 \, \text{dB}\) higher than a \(4.00 \times 10^{-9} \, \text{W/m}^2\) sound? **Problem #7:** If a large housefly \(3.0 \, \text{m}\) away from you makes a noise of \(40.0 \, \text{dB}\), what is the noise level of \(1000\) flies at that distance, assuming interference has a negligible effect?
Transcribed Image Text:**Problem #4:** What sound intensity level in dB is produced by earphones that create an intensity of \(4.00 \times 10^{-2} \, \text{W/m}^2\)? **Problem #5:** What is the intensity of a sound that has a level \(7.00 \, \text{dB}\) lower than a \(4.00 \times 10^{-9} \, \text{W/m}^2\) sound? **Problem #6:** What is the intensity of a sound that is \(3.00 \, \text{dB}\) higher than a \(4.00 \times 10^{-9} \, \text{W/m}^2\) sound? **Problem #7:** If a large housefly \(3.0 \, \text{m}\) away from you makes a noise of \(40.0 \, \text{dB}\), what is the noise level of \(1000\) flies at that distance, assuming interference has a negligible effect?
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