Posted by **Lenzen** on Thursday, April 15, 2010 at 12:12pm.

A speed boat at rest begins to move in a straight line from a dock. The boat has a constant acceleration of +3.0 m/s squared. Attached to the dock is a siren that is producing a 755 Hz tone. If the air temperature is 20 degrees C, what is the frequency of the sound heard by a person on the boat when the boat's displacement from the dock is +45.0m?

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