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    Doppler effect: Sound source, frequency, speed of sound

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    A sound source and a person are separated by 1000m. The sound source produces a frequency of 400Hz. Given speed of sound in air @ 343 m/s find:

    1) Source moves toward person at 20 m/s, what frequency does the person hear?

    2) If source stays still, but the person moves toward the sound source at 20 m/s, what frequency will the person hear?

    © BrainMass Inc. brainmass.com December 15, 2022, 5:27 pm ad1c9bdddf
    https://brainmass.com/physics/doppler-shift/doppler-effect-sound-source-frequency-speed-of-sound-84892

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