Concept explainers
(a)
The intensity of the sound.
(a)
Answer to Problem 74PQ
The intensity of the sound is
Explanation of Solution
Write the equation of intensity of sound.
Here,
Write the expression for the power.
Here,
Rewrite the expression for the intensity by using equation (II).
Conclusion:
Substitute
Thus, the intensity of the sound is
(b)
The amount of sound level.
(b)
Answer to Problem 74PQ
The amount of sound level is
Explanation of Solution
Write the equation of sound level.
Here,
Conclusion:
Substitute
Thus, the amount of sound level is
(c)
The intensity of the sound.
(c)
Answer to Problem 74PQ
The intensity of the sound is
Explanation of Solution
Write the equation of intensity of sound.
Here,
Write the expression for the power.
Here,
Rewrite the expression for the intensity by using equation (II).
Conclusion:
Substitute
Thus, the intensity of the sound is
(d)
The amount of sound level.
(d)
Answer to Problem 74PQ
The amount of sound level is
Explanation of Solution
Write the equation of sound level.
Here,
Conclusion:
Substitute
Thus, the amount of sound level is
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Chapter 17 Solutions
Physics for Scientists and Engineers: Foundations and Connections
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