contestada

A fire engine is rapidly approaching the corner. Explain what happens to the frequency of the sound wave as the fire engine draws closer. What do you hear?

Respuesta :

it gets lower when it is slowing down

Answer:

Increases

Explanation:

The apparent change in the frequency of sound as there is a relative motion between the sorce and the observer is called doppler effect.

If the source of sound comes closer to the stationary observer, the frequency of sound increases.

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