The loudness L(x), measured in decibels (dB), of a sound of intensity x, measured in watts per square meter, is defined as L(x) = 10 log (x / I0), where I0 = 10-12 watt per square meter is the least intense sound that a human ear can detect. Determine the loudness, in decibels, of each of the following sounds. Diesel truck traveling 40 miles per hour 50 feet away:intensity 10 times that of a passenger car traveling 50 milesper hour 50 feet away, whose loudness is 70 decibels.

The loudness L(x), measured in decibels (dB), of a sound of intensity x, measured in watts per square meter, is defined as L(x) = 10 log (x / I0), where I0 = 10-12 watt per square meter is the least intense sound that a human ear can detect. Determine the loudness, in decibels, of each of the following sounds. Diesel truck traveling 40 miles per hour 50 feet away:intensity 10 times that of a passenger car traveling 50 milesper hour 50 feet away, whose loudness is 70 decibels.

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.1: Exponential Functions

Problem 60SE: The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is...

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