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A rigid, well-insulated tank with a volume of 3 fe contains air at P1= 22 lbf/in2 and T1= 475 •R. The air is stirred by a paddle wheel, resulting in an energy transfer to the gas of magnitude 4680 ft-lbf. Assuming ideal gas behavior for the air and neglecting kinetic and potential energy effects, determine the: a) Mass of the air b) Final temperature in oR c) Final pressure in psi.
Find the needed length of the heated section of the tube and find the temperature of the water when it exits the heated section of the tube.
Consider a cylindrical titanium wire 3.0 mm in diameter and 2.5 x 104 mm long. Calculate its elongation when a load of 500N is applied, assuming that the deformation is totally elastic.
the track for a racing event was designed so that riders jump off the slope at 30 degrees from a height of 5 ft. the
a man of mass m1 walks along a plank of length l with a constant acceleration a relative to the plank. The mass of the plank is m2 and the coefficient of friction between the plank and the ground is mu. Find the distance the plank moves if the man..
a civil engineer must design a wheelchair accessible ramp next to a set of steps leading up to a building. the height
refrigerant -134a at 800kPa and 25 C is throttled to a temperature of -20C. determine the pressure and the internal energy of the refrigerant at the final state.
during an emergency launch operation to fill a missile with rp-4 a kerosene-based fuel the ullage volume of the fuel
a manometer is connected to a water pipe to measure the pressure at the center of the pipe. the manometer is
the total cross-sectional area of the inlet to the jet engines is 20 ft2. assume that the flow properties of the air
a solid shaft l 1.9 m long is supported between two bearings. the shaft rotates at 250 rpm. a 20 degree involute gear
An ogee spillway of a gravity dam is to be modeled using water. The spillway section is 40 feet high, its crest length is 60 feet and the maximum discharge is 3,000 CFS when the head on the crest of the spillway is 5 feet. Using a model scale of 1:10..
A new cast iron pipe is 5 km long and 15 mm diameter is used to convey water at a rate of 0.0150m3s-1. Given the absolute roughness of the pipe is 0.26 mm, density of water is 998 kg/m3 and dynamic viscosity of water is 1.14 × 10-3 kgm 1s-1.
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