Physics

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15.0 meters from a sound source that radiates freely in all directions, the intensity is 0.00230 W/m2. What is the rate at which the source is emitting sound energy?

  • Physics -

    Area of the sphere around the source is 4•π•R² = 2827.4 m²
    The rate is 2827.4•0.00230 =6.5 W

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