3-21M, For the flud power automobile lift system of Figure 3-35, the air pressure equals 550 kPa gage. If the hydraulic piston has 250 mmm diameter, what is the maximum weight of an automoile that can be lifted? The specific gravity of the oil is 0.90. What percent error in the answer to this problem occurs by ignoring the 1-m head of oil between the air-oil interface surface and the bottom surface of the piston?