Concept explainers
Tofind:the difference in loudness between an average office with an intensity of
Answer to Problem 80E
Explanation of Solution
Given:
The relationship between the number of decibels
Concept Used:
Product property of logarithm states that for a positive real numbers a such that
Power property of logarithm states that for a positive real numbers a such that
Quotient property of logarithm states that for a positive real numbers a such that
First find the number of decibels in average office with an intensity of
Substitute
Using product property,
Using the power property,
Using
Now, find the number of decibels in broadcast studio with an intensity of
Substitute
Using product property,
Using the power property,
Using
Now find the difference,
Using quotient property,
Hence, the difference in loudness is approximately 26 dB.
Chapter 3 Solutions
EBK PRECALCULUS W/LIMITS
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