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A hydraulic lift is used to jack a 970 kg car 12cm off the floor . The diameter of the output piston is 18cm and the input force is 250N. (a) what is the area of the input piston? (b) what is the work done in lifting the car 12cm? (c) If the input piston moves 13cm in each stroke how high does the car move up for each stroke? (d) How many strokes are required to jack the car up 12cm? (e) show that energy is conserved

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The following are the answers to the questions presented:

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a.Β Β Β Β  0.000670 m^2

b.Β Β Β  1140.72 J

c.Β Β Β Β  0.00342 m/stroke

d.Β Β Β  35.1 strokes

e.Β Β Β Β  1140.72 J

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