Engineering, 18.09.2019 20:00 Laurieg
Water flows under a sluice gate on a horizontal bed at the inlet to a flame. upstream from the gate, the water depth is 1.5 feet and the speed is negligible. at the vena contracta downstream from the gate, the flow streamlines are straight and the depth is 2 inches. determine the flow speed downstream from the gate and the the discharge in ft^3/s per foot of width. how deep is the water to produce two times of the speed obtained?
Answers: 2
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Engineering, 04.07.2019 18:20
Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Water flows under a sluice gate on a horizontal bed at the inlet to a flame. upstream from the gate,...
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