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## A car speeding down the highway honks its horn, which has a frequency 392 Hz, but a resting bystander hears the frequency 440 Hz. If the spe

Question

A car speeding down the highway honks its horn, which has a frequency 392 Hz, but a resting bystander hears the frequency 440 Hz. If the speed of sound in air is 343 m/s, how fast is the car moving

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Physics
5 months
2021-09-02T15:22:44+00:00
2021-09-02T15:22:44+00:00 1 Answers
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## Answers ( )

Answer:37.42 m/s

Explanation:We know that apparent frequency, is given by

where f is the given frequency in this case 392, V is the speed of sound in air which is given as 343 and is the speed of car which is unknown, \bar f is given as 440 Hz