During take off the sound intensity level of a jet engine is 120 Dan at a distance of 28 m   what is the sound intensity level at a distance of 1.0 km? express your answer with the appropriate unit   the answer is not 60

College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter17: Physics Of Hearing
Section: Chapter Questions
Problem 72PE: What is the sound intensity level in decibels of ultrasound of intensity 105 W/m2, used to pulverize...
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During take off the sound intensity level of a jet engine is 120 Dan at a distance of 28 m

 

what is the sound intensity level at a distance of 1.0 km?

express your answer with the appropriate unit

 

the answer is not 60 

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