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Superimpose a uniform ?ow V ¼ 10i m=s, a doublet m ¼ 40 m3/s, and a vortex. Locate any stagnation points and ?nd the minimum pressure on the cylinder if the pressure of the standard atmospheric air is zero at a large distance from the cylinder. The strength of the vortex is (a) G ¼ 40p m2=s, (b) G ¼ 80p m2/s, and (c) G ¼ 120p m2/s.
work is consumed by a pump moving liquid he from a tank to a superconducting computer system. before the system is
what would be the energy absorbed if a 60-lb 31.5-in pendelum was released from an angle of 50 degrees hit a test bar
a polymer component that needs to maintain a stress level above 10 mpa for proper functioning of an assembly is
steam at 10 mpa and 450 degrees c enters an adiabatic turbine at 80 ms and exits at 10 kpa 92 quality and 50 ms. the
If a power plant rejects heat of 30,000,000kW/day into a nearby lake with 16,000 acre feet of water, how fast in degrees/day will the temperature of the lake rise if it is assumed that the lake is insulated and cannot reject heat in any other way?
air enters a compressor at 179 kpa and 290 k and exits at a temperature of 500.9 k. determine the power kw for the
a plate 50 mm wide and 15 mm thick is loaded in tension. the plate is made from steel with yield strength of 1500 mpa
estimate the machining time that will be required to finish a vertical flat surface of length 100 mm and depth 20 mm by
The performance of gas turbine engines may be improved by increasing the tolerance of the turbine blades to hot gases emerging from the combustor. One approach to achieving high operating temperatures involves application of a thermal barrier coat..
For the condition when the floor and duct temperatures are 30 and 80°C, respectively, and the thermal conductivity of concrete is 1.4 W/m · K, calculate the heat rate from each duct, per unit length of duct. Use a grid spacing with ?x = 2?y, where..
consider a compressor that receives saturated r-410a vapor at 0degc. the refrigerant leaves the compressor with a
water at 60 f is flowing in laminar flow between two stationary parallel plates spaced 2 inches apart. the centerline
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