Posted by Jon on Saturday, April 5, 2008 at 2:54am.
As a sound source moves away from a stationary observer, the number of waves will.
decrease

physics  bobpursley, Saturday, April 5, 2008 at 9:25am
This question is very vague, and poorly written.

DrBob222  Jon, Saturday, April 5, 2008 at 2:11pm
Thats all they have
A)increase
B)decrease
C)remain they same
D)need to know the speed of the source
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