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What horsepower must be supplied to a pump that operates at an efficiency of 75% to the flow if water (T=25°C) is pumped through the 25-cm wrought iron steel pipe from the lower tank to the upper one at a rate of 0.50 m^3/s? Assume K(entrance)=0.03, K(elbow)=0.35, and K(exit)=1.0.
methane oxygen and nitrogen flow into an insulated tank. the methane flow is 2 kgs at the 320k. the oxygen flow is 3
a 10-pitch 20-degree full-depth involute gearset with qv10 and a face width of 1.25 inches is being proposed to provide
determine the work done in lifting a 250-lb refrigerator 4 ft vertically into a van. alternatively the refrigerator
steam is to be condensed in the condenser of a steam power plant at a temperature of 50 degrees celsius with cooling
draw schematics of a heat engine and b refrigeration devices. label the reservoirs the type of energy transfer and the
5-15 air at at 300degk and 1 atm. flowing over a flat plate at 30 ms how thick is boundary layer at 2.5 cm from the
find the ratio of the earths translational k.e to its daily rotational k.e. assume the orbit about the sun is circular
A launch approaches a wharf at a speed of 10.5 knots(=5.4m/s).The engine are put in the reverse when the launch is 10 m from the wharf, the retardation being 1.25m/s squared. will the launch come to rest before hitting the wharf.. If not, with wha..
A 4 m diameter sphere is embedded in insulation. The sphere contains a liquid-ice mixture maintained at 0 deg C. The ambient temperature surrounding the insulation is 25 deg C.
air at a pressure of 200 kpa and free stream temperature of 27 degc flows over a square plate at a velocity of 30 ms.
a heat pump maintains a temperature of 25degc inside a house. the house leaks 0.8 kw per degree temperature difference
a 23 kg crate rests on a 10 kg hand cart as shown. the center of mass of the combined cratecart is at c. the cart is
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