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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?

2 Answers

1 vote
it gets lower when it is slowing down
User Rick Smith
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7 votes

Answer:

Increases

Step-by-step 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.

User Patrick Schocke
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