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The sound intensity 30 meters from a jet engine is 10 Watts per square meter. What...

The sound intensity 30 meters from a jet engine is 10 Watts per square meter.

  1. What is the sound intensity level, in decibels, at the specified location

a = 10 log [ I / IO ]

IO = 10-12 W/m2

I = 10 Watts

a = 130 dB

B. Without hearing protection, repeated exposure to sounds at or above 80 decibels can cause hearing loss. What minimum distance from the source (the jet engine) would a listener have to keep in order to prevent hearing damage?

Please show your complete work. Thank you!

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