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22 February, 11:42

9. In 35 s ... a pump delivers 55,000 g of oil into a barrel on a platform 25 m

above the pump intake pipe.

a. Calculate the work done by the pump.

25m

b.

Calculate the power of the pump.

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Answers (1)
  1. 22 February, 11:59
    0
    The work done by the pump is 13475 J. The power of the pump is 385 W.

    Explanation:

    When a force causes a body to move work is being done on the object by the force. Work is the measure of energy transfer when a force moves an object through a distance. The work done is the product of mass, gravity, and height.

    Work done = m * g * h

    = 55 * 9.8 * 25

    Work done = 13475 J.

    Power is defined as the rate of doing work with time.

    Power = work done / time

    = 13475 / 35

    Power = 385 W.
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