In a car lift compressed air exerts a force on a piston, Ask an Expert

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In a car lift, compressed air exerts a force on a piston with a radius of 3.18 cm. This pressure is transmitted to a second piston with a radius of 13.0 cm.

a) How large a force must the compressed air exert to lift a 1.32 x 10⁴ N car?

b) What pressure produces this force? Neglect the weight of the pistons.

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