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Describe why the sound of an oncoming siren changes as it passes you on the street....

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Physics

Describe why the sound of an oncoming siren changes as it passesyou on the street. Please include terms such as blue and red shift.What is one way this is used in astronomy?

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4.1 Ratings (810 Votes)
When siren passes you on street you hear the pitch of the sirenchange as it approaches the sirens pitch sounds higher than whenit is moving away from you This change is a common physicaldemonstration of the Doppler effectThe Doppler effect describesthe change in the observed frequency of a wave when there isrelative motion    See Answer
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