A triangular lamina is dipped vertically in water such that its 5 m wide horizontal base is 6 m below the free surface of water and the apex is 4 m about the base. Find : (1) The total hydrostatic force acting on the lamina. (2) The position of the centre of pressure Water 6m 4m 5m
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- Is the buoyant force on a submerged object equal to the weight of the object itself or equal to the weight of the fluid displaced by the object?(a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 32.6 m. Assume the density of the water is 1.00 x 103 kg/m³ and the air above is at a pressure of 101.3 kPa. 421106 Pa (b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 33.0 cm? 143995.51 Your response differs from the correct answer by more than 100%. N Need Help? Read It(a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 32.6 m. Assume the density of the water is 1.00 ✕ 103 kg/m3 and the air above is at a pressure of 101.3 kPa.(b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 33.0 cm?
- Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 31.6 m. Assume the density of the water is 1.00 ✕ 103 kg/m3 and the air above is at a pressure of 101.3 kPa. (b) What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 32.0 cm?At 20°C, the viscosity of water is 1.0x10-3 Pa-s and the viscosity of molasses is 51 Pa-s. Consider two tubes of the same length L, with fixed pressure difference Ap across each pipe. If water flows through Pipe 1 and molasses flows through Pipe 2, and both have the same flow rate Q, what is the ratio of the radius of Pipe 2 to Pipe 1?An electrical short cuts off all power to a submersible diving vehicle when it is a distance of 26 m below the surface of the ocean. The crew must push out a hatch of area 0.55 m2 and weight 350 N on the bottom to escape. a)If the pressure inside is 1.0 atm, what downward force must the crew exert on the hatch to open it? Express your answer in newtons.
- When an object with a volume of 4 x 10^-3 m^3 is completely submerged in water ( p water = 1000 kg/m^3), the buoyant force acting on the object will be?A pumping station uses a Venturi tube to measure the flow rate of gasoline. The density of the gasoline is p = 7.40 x 102 kg/m3, the inlet and outlet tubes, respectively, have a radius of 2.80 cm and 1.40 cm, and the difference in input and output pressure is P, - P, = 1.20 kPa. (a) Find the speed (in m/s) of the gasoline as it leaves the hose. m/s (b) Find the fluid flow rate in cubic meters per second. m3/s