9. The tank in the image contains benzene and is pressurized to 350 kPa (gage) in the air gap. The tank is 3 m wide along the z axis. Determine the vertical hydrostatic force on circular-arc section AB and its line of action. 60 cm The vertical hydrostatic force on circular-arc section AB is The line of action is cm to the right of A. Nim. 30cm P B Benzene 60 cm at 20°C A