Answered: The power output of a speaker is 9.0…

The power output of a speaker is 9.0 Watts and emits in all directions. At what distance will the sound still be painful (120DB) in meters? Round your answer to 3 decimal places.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter17: Sound

Section: Chapter Questions

Problem 44P: When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is its wavelength if the...

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

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The power output of a speaker is 9.0 Watts and emits in all directions. At what
distance will the sound still be painful (120dB) in meters? Round your answer to 3
decimal places.

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