Homework Help: physical science

Posted by erica on Monday, May 23, 2011 at 11:03am.

you are standing on a street corner, and you hear a fire truck approaching. does the pitch of the siren stay constant, increase, or decrease as it approaches you? does the pitch of the siren stay constant, increase, or decrease as it moves away?

physical science - SraJMcGin, Monday, May 23, 2011 at 11:38am
Try some of the following links for information:

http://search.yahoo.com/search?fr=mcafee&p=the+pitch+of+a+siren+as+it+approaches+and+moves+away

Sra

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