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sirfinklstin
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Homework Statement
A speaker is attached to a wire 1.5 m long and is spun in a circle at 2 rev/s. The speaker is connected to an electric piano on which a child is playing a note at 261 Hz. Speed of sound in air is 343 m/s.
What range of frequencies will the stationary observer hear?
I converted rev/s to rad/s to get angular velocity, w=720.0027707 rad/s.
Then, I converted this into linear velocity to match with the speed of sound, v/r = w, v = 1080.004156 m/s.
Next I used the Doppler equation for a moving source, and got 198.0887291 and 382.4685762Hz, is this correct?