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A 2-m^3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300C. Determine the mass of the stem that has entered and the pressure of the steam in the supple line.
a lecture hall having a volume of 106 ft3 contains air at 808f 1 atm and a humidity ratio of 0.01 lb of water vapor per
air flows through a converging-diverging nozzle with aeat 3.5. the upstream stagnation conditions are at atmospheric
an aircraft flies at 850 fts through air at -40 f and 5 psia. the turbojet engine has a pressure ratio of 10 and the
atank of 0.1-m3volume contains air at 298.15k 25degc and 101.33kpa.the tank is connected to a compressed-air line which
a gas turbine has two stages of ideal compression expansion intercooling and reheating. air enters the first compressor
Consider a summer air-conditioning system that is required to maintain a room (space) at specified conditions. The layouts of the system as well as the specifications are listed below. Required room temperature 23C, 50% Relative humidity.
a rigid chamber contains 100 kg of water at 500 kpa 100 c. a paddle wheel stirs the water at 1000 rpm with a torque of
at a ski resort water at 40 f is pumped through a 3-in diameter 2000ft long steel pipe from a pond at an elevation of
find the sum of two harmonic motions of equal amplitude but of slightly different frequencies. discuss the beating
The crystal structure of iron is BCC at temperatures below 912°C and FCC above 912°C. Calculate the weight of one unit cell of iron (a) below 912°C; (b) above 912°C.
If a super alloy jet engine is heated so that its length in each direction expands by 1%, what is its percentage change in volume (assume it is roughly cubic)?
a uniform bar ab of mass m 1.00 kg and length l 30.0 cm lies a horizontal plane. an additional mass m 1.00 kg is
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