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A frictionless piston is raised by slowly heating the gas contained in the cylinder. The initial pressure is 2 bar and the initial volume is 4 m3. The heat transfer to the tank is 2000 kJ, and the final volume is 7 m3. Determine the change in internal energy.
a bird flies directly into a plate glass window path of bird is perpendicular to plane of window at a location 1.5
the picture tube in an old black-and-white television uses magnetic deflection coils rather than electric deflection
a slide projector contains a 500 w light bulb cooled by an internal fan that blows room air across the bulb at a rate
a rigid tank whose volume is 0.5 m3 initially containing ammonia at 20oc 1.5 bar is connected by a valve to a large
a piston-cylinder device with a set of stops on the top initially contains 3 kg of air at 200 kpa and 27 degrees
a cnc drill press is to perform a series of through-hole drilling operations on a 1.75 in thick aluminum plate. each
a 2 m3 tank containing nitrogen at 25oc and 500kpa is connected through a valve to another tank containing 3kg of
a steam seperator seperates a 6 mpa saturated steam mixture into two streams whose pressure is the same as at the
Determine the surface temperature of the wire during a windy day when the air temperature is 10°C and the wind is blowing across the transmission line at 50 km/h.
a roughing section of a broach is to remove stock 3.2 mm deep from a steel surface205 mm long x 50 mm wide each tooth
determine the size of motor you would recommend to drive the following pumpsa a feedwater pump rated at 30000kgmin of
a cantilever beam has a z section of uniform thickness for which iy 23th3 iz 83th3 and iyz -th3. determine the
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