PROVE: Inverse Square Law for Sound A law of physicsstates that the intensity of sound is inversely proportional tothe square of the distance d from the source: 1 = k/d?.(a) Use this model and the equationB = 10 log(described in this section) to show that the decibel levelsB and B, at distances d and d, from a sound source arerelated by the equationdiB = B + 20 logdz(b) The intensity level at a rock concert is 120 dB at a dis-tance 2 m from the speakers. Find the intensity level at adistance of 10 m.

The expression for the decibel level is given as B=10logII0 Substituting the values for the…

Answered: PROVE: Inverse Square Law for Sound A…

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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An ambulance with a siren emitting a whine at 1770 Hz overtakes and passes a cyclist pedaling a bike at 2.61 m/s. After being passed, the cyclist hears a frequency of 1758 Hz. How fast is the ambulance moving? (Take the speed of sound in air to be 343 m/s.) Number i Units
You may want to review (Page). For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Temporary deafness. Part A Find the intensity (in W/m²) of a 54.0 dB sound. I₁ = 2.51×10-7 W/m² Submit Previous Answers ✓ Correct Set Up: ß = 10 log (1) with Io - " 1.00 × 10-¹2 W/m². If x = log y and To 1/10 Solve: 3 = 54.0dB gives 5.40 = log (1) I = (2.5 × 105) (1.00 × 10-¹²W/m²) = 2.51 × 10-7W/m² = 105.40 = then = Y 2.5 × 105. 10%.
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An ambulance with a siren emitting a whine at 1570 Hz overtakes and passes a cyclist pedaling a bike at 2.54 m/s. After being passed, the cyclist hears a frequency of 1560 Hz. How fast is the ambulance moving? (Take the speed of sound in air to be 343 m/s.) Number i Units

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