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April 19, 2014

Homework Help: Physics- Elena please help!

Posted by Mary on Wednesday, December 5, 2012 at 6:26pm.

An interstate highway has been built though a poor neighborhood in a city. In the afternoon, the sound level in a rented room is 114.0 dB as 172 cars pass outside the window every minute. (a) What is the sound intensity during the day ?
(Reminder: If you choose to use scientific notation to enter your answer, use the form 5E-4 to indicate 5 x 10-4) (b) What is the sound intensity at night? (c) What is the average late-night sound level?

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