A 50kg object is sitting on top of a pistion that is supported by a cushion of air in a cylinder. The radius of the piston is 1 m.
a) In order to support this weight, how much force is needed?
b) What does the air pressure inside of the cylinder have to be in order to produce enough force to support the weight?
c) If you added 5 kg more to the mass on the piston, assuming that the temperature remains constant, what would be the change in height of the piston?