Concept explainers
(a)
To find: The relative intensity of the Macy’s Thanksgiving Day parade with a loudness of 120 decibels.
(a)
Answer to Problem 59PPS
The intensity of the sound is
Explanation of Solution
Given:
The equation for the loudness in
The relative intensity of the sound is
The given log equation to measure the intensity is
The loudness is 120 decibels.
Calculation:
Consider the equation for the loudness is,
Then, solve the equation as,
Thus, the intensity of the sound is
(b)
To find: The ratio of the intensity.
(b)
Answer to Problem 59PPS
The ratio of the intensities is
Explanation of Solution
Given:
The level of the sound is 80 decibels.
Calculation:
Consider the loudness is 80 decibel then the intensity of the sound is,
The ratio of the intensities is,
Chapter 7 Solutions
Glencoe Algebra 2 Student Edition C2014
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