karagraham24
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Why does a siren have a lower pitch as it moves away from you? A The period of the sound wave is decreased B The amplitude of the sound wave is increased C The crests of the sound wave are farther apart D The troughs of the sound wave are spaced closer together. ​

Respuesta :

JuanDRomo

Answer:

it is letter C

there is a video explaining this

Answer:

C

Explanation:

I think it's C because when it moves further away the sound wave is moving apart  

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