At rest a cars horn sounds the note a 440 hz the horn is, Ask an Expert

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At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 417 Hz.

(a) Is the cyclist ahead of or behind the car?
behind
ahead

(b) What is the speed of the car?
m/s

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Category:- Physics
Reference No.:- M91076735

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