84. Sound Intensity The relationship between the number of decibels B and the intensity of a sound / (in watts per square meter) is B- 10 kog 10 (a) Determine the number of decibels of a sound with an intensity of I watt per square meter. (b) Determine the number of decibels of a sound with an intensity of 10 watt per square meter. (c) The intensity of the sound in part (a) is 100 times as great as that in part (b). Is the number of decibels 100 times as great? Explain. Exploration
84. Sound Intensity The relationship between the number of decibels B and the intensity of a sound / (in watts per square meter) is B- 10 kog 10 (a) Determine the number of decibels of a sound with an intensity of I watt per square meter. (b) Determine the number of decibels of a sound with an intensity of 10 watt per square meter. (c) The intensity of the sound in part (a) is 100 times as great as that in part (b). Is the number of decibels 100 times as great? Explain. Exploration
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 6ECP: The resistance of a copper wire carrying an electrical current is directly proportional to its...
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Sound Intensity The relationship between the
number of decibels β and the intensity of a sound I (in
watts per square meter) is
β = 10 log I
10−12.
(a) Determine the number of decibels of a sound with
an intensity of 1 watt per square meter.
(b) Determine the number of decibels of a sound with
an intensity of 10−2 watt per square meter.
(c) The intensity of the sound in part (a) is 100 times
as great as that in part (b). Is the number of decibels
100 times as great? Explain.
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