In a service station's hydraulic lift, the diameter of the large piston is \(200 \mathrm{~mm}\) and the diameter of the small piston is \(30 \mathrm{~mm}\). Force is exerted on the small piston by an air compressor.

(a) How much gauge pressure must the compressor supply to lift a \(1500-\mathrm{kg}\) car?

(b) If the car must be raised \(1.8 \mathrm{~m}\) off the floor, through what distance must the small piston travel?