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A speaker emits sound which has an intensity of 0.14 W/m? at a distance of 1.2 m. What is the acoustic power of the speaker? 10 W 7.5 W 5.0 W 2.5 W

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 133AP: A transverse wave on a string has a wavelength of 5.0 m, a period of 0.02 s, and an amplitude of 1.5...

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A speaker emits sound which has an intensity of 0.14 W/m? at a distance of 1.2 m. What is the
acoustic power of the speaker?
O 10 W
O 7.5 W
O 5.0 W
O 2.5 W

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