Concept explainers
Tofind:the difference in loudness between an vacuum cleaner with an intensity of
Answer to Problem 81E
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 vacuum cleaner with an intensity of
Substitute
Using the power property,
Using
Now, find the number of decibels in rustling leaveswith an intensity of
Substitute
Using the power property,
Using
Now find the difference,
Conclusion:
Hence, the difference in loudness is approximately 70 dB.
Chapter 3 Solutions
EBK PRECALCULUS W/LIMITS
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning