Suppose that the input piston of a hydraulic jack has a diameter of 2 cm and the

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Suppose that the input piston of a hydraulic jack has a diameter of 2 cm and the load piston a diameter of 25 cm. The jack is being used to lift a car with a mass of 1400 kg.
a. What are the areas of the input and load pistons in square centimeters? (A = πr3)
b. What is the ratio of the area of the load piston to the area of the input piston?
c. What is the weight of the car in newtons? (W = mg)
d. What force must be applied to the input piston to support the car?

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