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physics

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water moving in a horizontal pipe has a velocity of 9 m/s when the radius of the pipe os 0.025m. Determine the velocity of the water when it enters a wider section of the pipe and the radius is 0.075m.

  • physics -

    By dimension analysis, flow rate=Area x speed.
    and since they have the same flow rate:
    A1v1=A2v2
    Cross multiply and calculate for v2

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