1. The low-frequency speaker of a stereo set has a surface area of 0.05 m and produces 1 W ofacoustical power.(a) What is the intensity at the speaker?(b) If the speaker projects sound uniformly in all directions, at what distance from the speaker is theWintensity 0.26-?m2Hint: If the sound projects uniformly in all directions, after traveling a distance r it is uniformlydistributed over a sphere of area r. What is the surface area of a sphere of radius r?W(a) Intensity:m?(b) Distance (radius), r:m

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1. The low-frequency speaker of a stereo set has a surface area of 0.05 m? and produces 1 W of acoustical power. (a) What is the intensity at the speaker? (b) If the speaker projects sound uniformly in all directions, at what distance from the speaker is the W intensity 0.26 m? Hint: If the sound projects uniformly in all directions, after traveling a distance r it is uniformly distributed over a sphere of area r. What is the surface area of a sphere of radius r? W (a) Intensity: 2 m (b) Distance (radius), r:

1. The low-frequency speaker of a stereo set has a surface area of 0.05 m? and produces 1 W of acoustical power. (a) What is the intensity at the speaker? (b) If the speaker projects sound uniformly in all directions, at what distance from the speaker is the W intensity 0.26 m? Hint: If the sound projects uniformly in all directions, after traveling a distance r it is uniformly distributed over a sphere of area r. What is the surface area of a sphere of radius r? W (a) Intensity: 2 m (b) Distance (radius), r:

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 77P: The low-frequency speaker of a stereo set has asurface area of A=0.05 m2 and produces 1 W of...

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