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The Level of Sound in Decibels (Db) Is Given by the Formula

Question 2

Multiple Choice

The level of sound in decibels (db) is given by the formula The level of sound in decibels (db) is given by the formula , where I is the sound intensity in watts per square meter. If the sound intensity of a jet airplane is 0.001 watts per square meter at a distance of 170 meters, what is the level of the sound at this point in db, rounded to the nearest tenth? A) 74.7 B) 77.2 C) 90.0 D) 81.1 , where I is the sound intensity in watts per square meter. If the sound intensity of a jet airplane is 0.001 watts per square meter at a distance of 170 meters, what is the level of the sound at this point in db, rounded to the nearest tenth?


A) 74.7
B) 77.2
C) 90.0
D) 81.1

Correct Answer:

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