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(a) Find the sound level of a motorcycle if its intensity is 10 times the intensity of Io.

(a) Find the sound level of a motorcycle if its intensity is 10 times the intensity of Io.

Algebra for College Students
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter10: Exponential And Logarithmic Functions
Section10.CR: Review Problem Set
Problem 62CR
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(a) Find the sound level of a motorcycle if its intensity is 10 times the intensity of Io. The sound level of a motorcycle is dB.
Transcribed Image Text:(a) Find the sound level of a motorcycle if its intensity is 10 times the intensity of Io. The sound level of a motorcycle is dB.
Sounds are produced when vibrating objects create pressure waves in some medium such as air. When these variations in pressure reach the human eardrum, it causes the eardrum to vibrate in a similar manner and the ear detects sound. The intensity of sound is measured as power per unit area. The threshold for hearing (minimum sound detectable by a young, healthy ear) is defined to be I = 10-¹2 W/m² (watts per square meter). The sound level L, or "loudness" of (1) where I is the intensity of the given sound. Round to the nearest integer, if necessary. sound, is measured in decibels (dB) as L = 10 log
Transcribed Image Text:Sounds are produced when vibrating objects create pressure waves in some medium such as air. When these variations in pressure reach the human eardrum, it causes the eardrum to vibrate in a similar manner and the ear detects sound. The intensity of sound is measured as power per unit area. The threshold for hearing (minimum sound detectable by a young, healthy ear) is defined to be I = 10-¹2 W/m² (watts per square meter). The sound level L, or "loudness" of (1) where I is the intensity of the given sound. Round to the nearest integer, if necessary. sound, is measured in decibels (dB) as L = 10 log
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