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A closed system contains 0.8 kg of air, initially at 155 kPa with a volume of 0.45 m^3. The system undergoes a polytropic process resulting in the final state of 280 kPa and 100 degrees C. Determine a) the polytropic coefficient and b) the associated boudary work.
The lamp has a mass of 15 kg and is supported by a pole AO and cables AB and AC. If the force in the pole acts along its axis, determine the forces in AO, AB, and AC for equilibrium.
the temperature of 5 lbs of air is raised from 200 f to 500 f at constant pressure with an electrical coil. how much
A 1300 car is traveling along a straight road at 18 . Two seconds later its speed is 21. What is the magnitude of the net force acting on the car during this time?
a particle which moves in two-dimensional motion has coordinates given in inches by x t2 - 4t 20 and y 3 sin 2t
the ball at a is kicked such that thetaa 30 degrees. if it strikes the ground at b having coordinates x 15ft y -9ft
a steam power plant operating in a rakine cycle has saturated vapor at 600 lbfin2 leaving the boiler. the turbine
a high pressure axial compressor for a jet engine rotates at 15000 rpm with an overall stagnation pressure ratio of
in a compton experiment an electron attains a kinetic energy of 0.1 mev when a 0.5mev x-ray strikes it. determine the
the collars are pin connected at b and are free to move along rod oa and the curved guide oc having the shape of a
the rigid gate oab shown in the figure below is hinged at o and rests against a rigid support at b. what minimum
a strip of metal is 250 mm long. it is stretched in two steps first to 300 mm and then nbspto 400 mm. show that the
assume an average temperature of human to be 300k. determine the maximum spectral emission power of the human and the
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