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bmbradley
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Homework Statement
The Doppler shift was first tested in 1845 by the French scientist B. Ballot. He had a trumpet player sound a 463 Hz note while riding on a flat-car pulled by a locomotive. At the same time, a stationary trumpeter played the same note. Ballot heard 5 beats/s. How fast was the train moving toward him? The speed of sound in air is 343 m/s . Answer in units of m/s.
Homework Equations
f1=(v/(v+vs))f
where f1=463-5=458
v=343 m/s
and f=463
The Attempt at a Solution
458=(343/(343+vs))463
.9892=343/(343+vs)
vs=3.745
I have put in the answer at 3.745 and I also switched f1 and f and got 3.704, but both of those answers are wrong. Please help me figure out what I am doing wrong!