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Air enters an insulated diffuser with a pressure of 100 kPa, a temperature or 50 degrees C, and a velocity of 200 m/s. The area of the inlet is 80 cm^2. At the exit, the pressure is 113 kPa and the temperature is 69 degrees C. Determine the mass flow rate, the exit velocity and the area of the exit.
a gas is contained ina vertical, frictionless piston cylinder device.the piston has a mass of 4kg and a crossectional area of 35cm^2. a compressed spring is above the piston exerts a force of 60N on the piston .if the atmospheric pressure is 95kpa..
How does artificial aging affect KIC in a 7075 alloy? Which is likely to have a higher KIC: 7075-T6 or 7075-T7? Explain.
Draw conclusions concerning the process, and relate your interpretation to the possible existence of chance and assignable causes of variation.
A fireclay brick cube, 10 cm in length is removed from a furnace where it was maintained at a temperature of 500 degrees C. The brick cube is then placed in ambient temperature conditions.
showing the two upward pulls of the rings on his hands, each of size 380N. Calculate the angle between the wires supporting the rings and the vertical.
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine (a) the mass flow rate of steam and (b) the rate of entropy generation.
While jogging on the beach (it's a warm summer day, about 30 deg C) a high-speed jet flies overhead. You guesstimate it's an altitude of about 3500 m, and count off about 5 s before you hear it. Estimate the speed and Mach number of the jet.
Calculate the overall heat transfer coefficient between the air and the water (answer in W/m^2K).
A 12 Volt battery is charged by supplying 3 Amps over a period of 6 hours. What is the change of energy stored in the battery if the battery loses 400kJ of heat during charging.
Assume a diffusion coefficient of 1 × 10-8 m2/s, that the concentrations at the high- and low-pressure sides of the plate are 2.4 and 0.6 kg of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained.
In a DC planar magnetron sputtering system at 1000 V, the cathodeanode spacing is 10 cm. What magnetic field should be applied to trap electrons within 0.5 cm of the target?
what is the cooling temperature range obtained by thermoelectric refrigeration?
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