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physical science

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the distance between two wave crests in the water is 3 meters. a swimmer notices one wave goes by every 6 seconds. What is the spped of the waves

  • physical science -

    distance = speed * time
    3 = v * 6
    v = 1/2 meter /second

    note - that is called the "phase speed" and is the observed speed of a wave crest. It is not the speed of the propogation of the wave system called "group velocity".

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