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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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7 years ago
A barking dog delivers about 1.0 mW of power, which is assumed to be uniformly distributed in all directions.  What is the intensity level in decibels at a distance 5.00 m from the dog? The threshold of human hearing is 1.0 × 10-12 W/m2.
A) 61 dB
B) 63 dB
C) 65 dB
D) 68 dB
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College Physics

College Physics


Edition: 1st
Authors:
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HotMathHotMath
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Chery Author
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#2
7 years ago
Thanks a million
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