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Reversible 2T heat engine works between 1200 K and 600 K. Its work output per cycle is 100 J. What is amount of heat rejected in joule per cycle, to the revervoir at 600 K?
an industrial machine of mass 453.4kg is supported on springs with a static deflection of 0.508cm. the machine has a
an inward radial flow turbine is to develop 400 hp when supplied with air at 800c and 3 bar abs the exhaust total
If you have a plane wall separating hot and cold fluids at temperature T(infinity)1 & T(infinity)2. Using x=0 & x=L as boundary conditions, determine what the heat flux would be in terms of T(infinity)1, T(infinity)2, h1, h2, k, L.
the 1360kg car and the 2100kg tow truck are stationary. the muddy surface on which the cars tires rest exerts
the baseball player a hits the baseball with va 40 fts and thetaa 52circ. when the ball is directly above of player b
a mixture of methane and air is flammable only if the mole percent of methane is between 5 and 15. a mixture containing
A group of 20 students attend class in a room which measures 7m x 7m and has a 3 m ceiling height. Assume that each student occupies 0.07 m3 and gives out 400 kJ of heat per hour. Calculate the air temperature rise occurring within 15 min of the star..
a painter is standing on a work platform that is 27 feet above ground level. for fall protection the workers safety
One kg of air in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 0.5 MPa, T1 = 227oC. Constant-temperature expansion until the volume is twice the initial volume.
a 137-cs source has an acticity of 700 mu ci. a gamma proton with energy 0.662 mev is emitted with a frequency of 0.849
Moist air at 450C and relative humidity 30% (State 1) with another stream of moist air at 20?C and relative humidity 50% (State 2) in an adiabatic duct. Mass flow rate of dry air is 0.8 kg/s at section 1 and 1 kg/s at section 2. The mixed stream (Sta..
an engine of mass 180 kg is to be supported on four helical springs. when the engine speed is 900 rpm there is a
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