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- A hydraulic cylinder filled with water has an inside diameter of 1.0 in and a length of 2.0 ft. How many pounds of force must be applied to a piston at the end of the cylinder to compress the water by 0.1 in? Take the bulk modulus of water to be K=312,000 psi.A gate with a mass of 45 kg is hinged at point A. The gate dimensions are a = 90 cm and b = 60 cm, and the angle between the horizontal is 45°. A counterweight of W is attached with a rod to balance the gate, as shown in the figure. If the length of the balancing rod is 90 cm and the vertical distance from point A to the free surface of the water is given as 30 cm, determine the required mass of counterweight to keep the gate closed.A bottle consists of a cylinder 30 cm in diameter and 30 cm high and a neck 5 cm in diameter and 30 cm long. The bottle is inserted into a body of water, with the open end of the neck first until the neck is completely filled with water. Assuming the pressure of the atmosphere is standard, and neglecting water vapor pressure, what is the depth to wich the open end is submerged below the free surface? a.30 cm b.60 cm c.50 cm d.none of the above
- Q2/ How much fluid is required to raise the pressure in a thin cylinder of length 3 m, internal diameter 0.7 m, and wall thickness 12mm by 70kN/m*? E = 210GN/m* and v = 0.3 for the material of the cylinder and K = 2.1 GN/m* for the fluid.The density of a floating body can be determined by tying weights to the body until both the body and the weights are completely submerged, and then weighing them separately in air. Consider a wood log that weighs 1400 N in air. If it takes 34 kg of lead (? = 11,300 kg/m3) to completely sink the log and the lead in water, determine the average density of the log.plzzzzzzz help What is the minimum Block mass (kg) that is required to open the gate A-B? The density of water is 1000 kg/m3 and the density of the block is 8000 kg/m3. The specific gravity of oil is 0.9. The depth of the gate is not required. The external force that effects the gate at point A is Fe=3000 N, while the hydrostatic force Fh=9313.8 N
- A rectangular gate 1.8 m high by 1.20 m wide is mounted on the vertical wall of an open rectangular tank filled with oil. The top of the gate is 1.2 m below the surface of oil. What is the minimum force F applied at the top edge of the gate required to keep it close assuming the gate is hinged at the bottom edge. (S=0.8)The density of seawater at a free surface where the pressure is 98 kPa is approximately 1030 kg/m3. Taking the bulk modulus of elasticity of seawater to be 2.34 × 109 N/m2 and expressing variation of pressure with depth z as dP = ?g dz determine the density and pressure at a depth of 2500 m. Disregard the effect of temperature.The test tube opens at 293 K with 13 cm Hg at the bottom, and 5.6 cm water above Hg. Calculate the pressure at the bottom of the tube if the atmospheric pressure is 760 mm Hg. Use a density of 13.55 g / cm3 for Hg and 0.998 g / cm3 for water. Give answers in terms of dyne / cm2, psia, and kN / m2 • (See conversion table). = kPa. = ..... dyne / cm2. = .... psia = ....
- A 0.6-mm-diameter glass tube is inserted into water at 20°C in a cup. The surface tension of water at 20°C is ?s = 0.073 N/m. The contact angle can be taken as zero degrees. The capillary rise of water in the tube is (a) 2.6 cm (b) 7.1 cm (c) 5.0 cm (d ) 9.7 cm (e) 12.0 cmAn underwater gate 8 m wide is held closed by a force, F, as shown in the figure. If the force is applied at the middle of the gate, what is the minimum value required to keep the gate closed? take density of water= 996kg/m3Determine the magnitude of the force on the inclined gate 1.5m by 0.5m shown in the figure. The tank of water is completely closed and the pressure gage at the bottom of the tank reads 90,000 N/m2. Use 9800 N/cubic meter for water? Ans: 48022.5N