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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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What sound levels must sounds of the following frequencies have in order to have the same loudness as a 40 dB sound of frequency 1,000 Hz (that is, to have a loudness of 40 phons)?
60 Hz
400 Hz
10,000 Hz
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- The formula for measuring sound intensity in decibels is defined by the equation D = 10 log(I/I0), where I is the intensity of the sound in watts per square meter and I0 = 10-12 is the lowest level of sound that the average person can hear. How many decibels are emitted from a jet plane with a sound intensity of 8.3 x 102 watts per square meter?arrow_forwardA sound of 60 dB is OOOO 2 times as intense as a sound of 40 dB 1.5 times as intense as a sound of 40 dB O4 times as intense as a sound of 40 dB 1,000 times as intense as a sound of 40 dB 100 times as intense as a sound of 40 dB 16 times as intense as a sound of 40 dB 20 times as intense as a sound of 40 dB 10 times as intense as a sound of 40 dB O 8 times as intense as a sound of 40 dBarrow_forward
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