College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 62GP
A very noisy chain saw operated by a tree surgeon emits a total acoustic power of 20.0 W uniformly in all directions. At what distance from the source is the sound level equal to (a) 100 dB, (b) 60 dB?
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The sound level 8.25 m from a loudspeaker, placed in the open, is 115 dB. What is the acoustic power output (W) of the speaker, assuming it radiates equally in all directions?
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Chapter 12 Solutions
College Physics (10th Edition)
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Ch. 12 - TV weather forecasters often refer to Doppler...Ch. 12 - A wire under tension and vibrating in its first...Ch. 12 - A segment A of wire stretched tightly between two...Ch. 12 - A string that is 6.0 m long is tied between two...Ch. 12 - An organ pipe open at one end, but closed at the...Ch. 12 - A person listening to a siren from a stationary...Ch. 12 - A string of length 0.600 m is vibrating at 100.0...Ch. 12 - When a 15 kg mass is hung vertically from a thin,...Ch. 12 - Prob. 7MCPCh. 12 - An organ pipe open at both ends is resonating in...Ch. 12 - Prob. 9MCPCh. 12 - Traffic noise on Beethoven Boulevard has an...Ch. 12 - A thin, light string supports a weight W hanging...Ch. 12 - String A weighs twice as much as string B. Both...Ch. 12 - (a) Audible wavelengths. 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A cellist tunes the C-string of...Ch. 12 - A bat flies toward a wall, emitting a steady sound...Ch. 12 - The sound source of a ships sonar system operates...Ch. 12 - The range of human hearing. A young person with...Ch. 12 - A person leaning over a 125-m-deep well...Ch. 12 - Prob. 68GPCh. 12 - A small musical toy produces a steady tone at 1000...Ch. 12 - A turntable 1.50 m in diameter rotates at 75 rpm....Ch. 12 - Musical scale. The frequency ratio of a semitone...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - If the deepest structure you wish to image is 10.0...Ch. 12 - After a beam passes through 10 cm of tissue, what...Ch. 12 - Because the speed of ultrasound in bone is about...Ch. 12 - BIO Waves on vocal cords. In the larynx, sound is...Ch. 12 - For cranial ultrasound, why is it advantageous to...
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