College Physics
OER 2016 Edition
ISBN: 9781947172173
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 17, Problem 21PE
People with good hearing can perceive sounds as low in level as −8.00 dB at a frequency of 3000 Hz. What is the intensity of this sound in watts per meter squared?
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a noise level meter reads the sound level in a room to be 85 dB. What is the intensity of sound in W/m^2?
A sound wave with intensity 2 x 10 -3 W/m2 is perceived to be modestly loud. Your eardrum is 6 mm in diameter. How much energy will be transferred to your eardrum while listening to this sound for 1 minute?
The loudness of sound can be measured on a decibel scale. The sound level L (in decibels) of a sound is given by
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The decibel value of this sound is.
(Simplify your answer. Type an integer or a fraction.)
GEREID
Chapter 17 Solutions
College Physics
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