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A train whistle is 580 Hz when stationary. It is coming toward you at 18.8 m/s. What frequency do you hear?
(Speed of sound = 343 m/s) (Unit=Hz)

Respuesta :

Answer:

612 Hz.

Step-by-step explanation:

The frequency of the sound  will be proportionally higher when coming towards you. The increase is related to the speed of the train.

So the frequency will be:  

580 + (580 / 343) * 18.8

=  612 Hz.

This is called the Doppler effect.

Answer:

612 hz

Step-by-step explanation:

580 + (580 / 343) * 18.8

=  612 Hz.

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