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3 years ago

6

The security alarm on a parked car goes off and produces a frequency of 951 hz. the speed of sound is 343 m/s. as you drive towa

rd this parked car, pass it, and drive away, you observe the frequency to change by 99 hz. at what speed are you driving?

1 answer:

AVprozaik [17]3 years ago

7 0

951hz divide by 343m/s = <span>2.77259475
times the answer by 99hz = </span><span>274.48688
to 1 d.p is 274.5m/s</span>

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