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physics

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A pump is required to lift 800 liters of water per minute from a well 15.0 m deep and eject it with a speed of 17.0 m/s.
How much work per minute does the pump do?

  • physics - ,

    use
    E = mgh + 1/2 mv^2
    = (800 L)(1 kg / 1 L) (9.8 m/s^2) (15m) + 1/2 (800 L)(1 kg / 1 L) (17 m/s)^2
    = 233200 J

  • physics - ,

    I agree with that.

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