Need help with a physical science question about amplitudes

Science
Tutor: None Selected Time limit: 1 Day

how do the amplitudes of a 120-decibel sound and a 100-decibel sound compare?

Nov 6th, 2015

Thank you for the opportunity to help you with your question!

A difference of 20 dB means the louder one is delivering 100 times as much 
power as the softer one is. 

-- The power delivered by any sinusoidal phenomenon is usually proportional to 
the square of the amplitude. So the amplitudes would have to be in the ratio of 
10 to 1. The louder one has 10 times the amplitude of the softer one.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 6th, 2015

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Nov 6th, 2015
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Nov 6th, 2015
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