1. An oil manometer (=860kg/m3) is connected to a cylinder containing air. The difference in the level of oil between the two columns is 45cm and Patm is 99kPa. Calculate the absolute pressure of the air in the cylinder. 2. A manometer containing mercury (=13,600kg/m3) is attached to an air duct to estimate the pressure. The high of the differential column is 15mm, and the Patm is 101kPa. (a) Departing from figure, determine whether the pressure in the duct is higher or lower than the atmospheric pressure. (b) Determine the absolute pressure in the duct. 3. The density of the human blood is 1050kg/m3 and the average blood pressure in a healthy person is about 120mmHg. If a vertical tube open to the atmosphere is connected to the vein in the arm of the person, determine how high the blood will rise in the tube. 4. A piston with a weight of 25N separates two chambers as shown in figure. Both chambers contain the same fluid at their base. Calculate the gage pressures in chambers A and B. 5. Two oil containers are connected to each other through a differential manometer. The difference between the mercury levels in the two columns is 32 in. Determine the pressure difference between the two tanks. The densities of oil and mercury are 45lbm/ft3 and 848 lbm/ft3, respectively