February 21, 2017

Homework Help: Physics-Sound Waves

Posted by Nikki on Wednesday, April 4, 2007 at 10:53pm.

I'm not sure how to go about answering this question... I have all these equations and none seem to apply. The question is:

If you have two speakers on opposite sides of a concert stage producing identical sound waves with a wavelength of .8m. If you consider only the direct waves coming straight from the speakers (neglecting waves that are reflected from the ceiling, walls, etc) With only one speaker on at a time, at some point in the audience, one speaker has a pressure amplitude of 10 N/m^2, and the other speaker has pressure amplitude of 7 N/m^2. The point in the audience is .4 m farther from one speaker than the other. What is the amplitude of the pressure oscillations with both speakers on?

Thanks for the help!

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