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A mass of 2.4 kg of air at 150 kPa and 12ºC is contained in a gas-tight, frictionless piston-cylinder device. The air is now compressed to a final pressure of 600 kPa. During the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. Calculate the work input during this process. Sketch the process on a P-v diagram.
refrigerant 134a at 700 kpa and 40oc is expanded adiabatically in a closed system to 60 kpa. determine the work
A glass/epoxy laminate with a fiber orientation of 30 degrees is subjected to a shear stress t_xy (or tau_xy) which can be positive or negative.
A large tower is to be supported by a series of steel wires; it is estimated that the load on each wire will be 13,300 N (3000 lbf). Determine the minimum required wire diameter, assuming a factor of safety of 2 and a yield strength of 860 MPa (12..
0.2 m3 of saturated liquid r-134a in a piston cylinder is heated at a constant pressure of 800kpa to 50 dcg c. what is
one cubic foot 1 ft3 of air is contained in a piston - cylinder arrangement. the axis of the cylinder is oriented in
a 0.4 w cylindrical electronic component with a diameter of 0.3 cm and length 1.8 cm is mounted horizontally on a
what is the maximal attainable speed of a bullet in m/s?
two identical asteroids travel side by side while touching one another. if the asteroids are composed of homogeneous
air conditioning1- cooling and heating load estimate using camel program library and the data from da-9 perform a
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine (a) the mass flow rate of steam and (b) the rate of entropy generation.
an 8-kg iron casting at 550 degc is quenched in a tank containing 0.03 m3 of liquid water initially at a temperature of
estimate the velocity with which you would contact the ground if you jumped from an airplane at an altitude of 5000 ft
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