Two chambers with the same fluid at their base are separated by a 30-cm-diameter cylindrical piston whose weight is 25 N as shown in the figure. a. Calculate the gage

pressures at locations E and D. (Ans: 2.12 kPa) b. Calculate the gage pressures at locations A and B including the change in pressure through the air. c. Discussion: Calculate the relative error between your solutions in part a and part b. Can the change in pressure through a gas be neglected when a hydrostatic pressure analysis includes regions of liquid and gas?