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Air at 60° F and 40 psia is flowing in a 4" diameter pipe at 0.2 slugs/sec. The pipe undergoes a conversion to a 2" by 3" rectangular duct in which T = 150°F and P = 7 psia. Calculate the average velocity in each section.
A 0.3-L glass of water at 20°C is to be cooled with ice to 5°C. The melting temperature and the heat of fusion of ice at atmospheric pressure are 0°C and 333.7 kJ/kg, respectively, and the density of water is 1 kg/L.
a 50-lb sphere with a radius of qyration of 0.4 ft is accelerated about its centroidal axis. determine the torque
compute the torsional shear stress in a hallow shaft with an outside diameter of 40 mm and an inside diameter of 30 mm
make a text file that contains what is your absolute path, and call it paths.txt
water flowing in a horizontal 30 cm diameter pipe at 5 ms and 300 kpa gage enters a 90o bend reducing section which
a 20 degc brix sucrose solution at 70 degf is being pumped from a large open tank at a rate of 16 gallonsmin through a
an air-standard brayton cycle is utilized as a jet propulsion engine. the aircraft flies at an altitude of 5000 m at a
Refrigerant R-134a is compressed steadily and adiabatically in a reversible compressor. The volume flow rate entering the compressor is 800 ft3/min.
Atoms are 1-dimensionally aligned with an inter atomic distance of 10nm. Let’s assume that the positive charge of the nucleus of the atom is infinitely large so that electrons are confined to a specific atom. Then, what wavelength photons are require..
air at a pressure of 400kpa and a temperature of 700 degree celsius expands in a turbine at steady state to a pressure
The actual (irreversible) components of a small Brayton cycle gas-turbine engine are shown. The cycle pressure ratio is 15 and the maximum turbine temperature is 1600 K. The turbine and the compressor are insulated and have isentropic efficiencies of..
A 25-g bullet is traveling with a velocity of 425 m/s when it impacts and becomes embedded in 2.5 kg wooden block. The block can move vertically without friction. Determine a) the velocity of the bullet and block immediately after impact,
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