Problem 1 The specific gravity of benzene is 0.876. Calculate its specific weight and its density in U.S. Customary System units. Problem 2 If milk has a specific gravity of 1.08, what is the pressure at the bottom of a milk can 550 mm deep? Problem 3 For the differential manometer shown, calculate the pressure difference between points A and B. The specific gravity of the oil is 0.85. Oil Water 10 in 9 in B 32 in Problem 4 Calculate the total force on the bottom of the closed tank shown if the air pressure is 52 Pa (gage). Air 0.50 m Oil (sg=0.85) 0.75 m Water -1.2 m - -1.8 m- Problem 5 The wall shown is 20 ft long. (a) Calculate the total force on the wall due to water pressure and locate the center of pressure; (b) Calculate the moment due to this force at the base of the wall. 12 ft Water Problem 6 The instrument package shown weighs 258 N. Calculate the tension in the cable if the package is completely submerged in seawater having a specific weight of 10.05 kN/m. 450 mm Water surface 300- mm 600 mm Cable Sea bottom Problem 7 Water at 10C is flowing at 0.075 m/s. Calculate the weight flow rate and the mass flow rate. Problem 8 Calculate the diameter of a pipe that would carry 75.0 ft/s of a liquid at an average velocity of 10.0 t/s. Problem 9 Compute the Reynolds number for the flow of 325 L/min of water at 10C in a standard hydraulic steel tube, 50 mm OD x 1.50 mm wall thickness. Is the flow laminar or turbulent? Problem 10 SAE 30 oil (sg = 0.89) is flowing at 45 L/min through a 20 mm OD x 1.20 mm wall hydraulic steel tube. If the oil is at 0C, is the flow laminar or turbulent?