PHYSICS

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Allegra's favorite ride at the Barrel-O-Fun Amusement Park is the Flying Umbrella, which is lifted by a hydraulic jack. The operator activates the ride by applying a forcce of 72 N to a 3.0-cm-wide cylindrical piston, which holds the 20000. N ride off the ground. What is the diameter of the piston that holds the ride?

  • PHYSICS -

    Is it 32.57 cm?

  • PHYSICS -

    pressure1=pressure2
    force1/area1=force2/area2

    force1/diam1^2=force2/diam2^2

    diameter2= sqrt(force2/force1) * diameter1
    = sqrt (20,000/72)* 3cm
    = a little over 60cm

  • PHYSICS -

    thanx!!

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