Homework Help: science

Posted by david on Wednesday, November 17, 2010 at 8:11pm.

. What must happen in order for a sound wave to form?

A. An electric current must flow.

B. A certain frequency must be reached.

C. Matter must vibrate.

D. Volume must be absorbed.

science - SraJMcGin, Thursday, November 18, 2010 at 10:50am
Please try some of these links:

http://search.yahoo.com/search?fr=mcafee&p=what+must+happen+in+order+for+a+sound+wave+to+form

Sra
science - Anonymous, Sunday, August 14, 2011 at 8:05pm
idk

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