a.
Verify Inverse Square Law for Sound.
a.
Answer to Problem 43E
Explanation of Solution
Given information:
A law of physics states that the intensity of sound is inversely proportional to the square of the distance
Use this model and the equation
(Described in this section) to show that the decibel levels
Calculation:
Consider the definition of intensity level,
Apply inverse law of sound,
Put
Put
Determine
Hence, the relation between intensities is,
b.
Verify Inverse Square Law for Sound.
b.
Answer to Problem 43E
Explanation of Solution
Given information:
A law of physics states that the intensity of sound is inversely proportional to the square of the distance
The intensity level at a rock concert is
Calculation:
Consider the intensity level,
Substitute the given values,
Hence, the intensities level is,
Chapter 4 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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