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Hydrogen flows through a horizontal insulated duct. At section1 the enthalpy is 2400 btu/lbm, the density is .5 lbm/ft^3 and the velocity is 500 ft/sec. at at downstream section, h2= 2240 btu/lbm and density2= .1 lbm/ft^3. No shaft work is done. Determine the velocity at section 2 and the ratio of areas.
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An oil storage tank has a flat, horizontal, circular roof that is 77 ft in diameter. The tank has a vent to the atmosphere to allow air to move in and out as the tank is filled or emptied. The vent is plugged by snow in a blizzard while the oil is be..
for a metal that has the simple cubic crystal structure calculate the atomic radius if the metal has a density of 8.38
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A satellite is in Earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. What is the semi-major axis of the orbit? b. What is the eccentricity? c. If the true anomaly is 160 degrees, what is the satellite's ..
a piston has an area of 500 mm2. what mass must the piston has if it exerts a pressure of 50 kpa above atmospheric
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