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1 January, 06:48

When a car is at rest, its horn emits a frequency of 600 Hz. A person standing in the middle of the street hears the horn with a frequency of 580 Hz. Should the person jump out of the way?

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  1. 1 January, 09:39
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    car is moving away from, so we does not need to move from his position.

    Explanation:

    given data

    initial frequency = 600 Hz

    final frequency = 580 Hz

    solution

    As we know that by the Doppler effect causes we received frequency of any sources

    and

    when frequency increases that mean you are moving toward the source or that source is moving towards you

    and

    when frequency decreases it mean you are moving away from source or the source is moving away from you

    and here we have given frequency is decreases from 600 Hz to 580 Hz

    so car is moving away from, so we does not need to move from his position.
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