Asked by Ben

What frequency is heard by an observer who hears the 450 Hz siren on a police car
traveling at 35 m/s away from her? Assume that the velocity of sound in air is 345 m/s.

Is this the correct?
450*345/(345+35)
=408Hz
Answered by Damon
yes
http://hyperphysics.phy-astr.gsu.edu/hbase/sound/dopp.html#c4
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