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Consider a mass M is a distance L above the ground at constant temperature, TR. The mass is released, falls, and hits the ground. The kinetic energy just before it hits is converted to thermal energy due to the collision and is transferred to the ground by heat transfer. Using the Kelvin-Planck statement of the second law, demonstrate that this process is irreversible.
Determine the density of Refrigerant-12 at 3MPA and 200 degrees celcius by using the principle of corresponding states.
A steel circular bar (\sigmayp =250 MPa) of d=60-mm diameter is acted upon by combined moments M and axial compressive loads P at its ends. Taking M=1.5KN.m, determine, based on the maximum energy of distortion theory of failure, the largest allowabl..
A 90-N force is applied to the control rod AB as shown. Knowing that the length of the rod is 225 mm, determine the moment of the force about point B by resolving the force into horizontal and vertical components.
the free convection heat transfer coefficient on a thin hot vertical plate suspended in still air can be determined
a solar collector is made of a cover plate then a 5 cm air gap and then an absorber plate with insulation on the back
a frictionless piston-cylinder device fitted with stops above the piston contains 1.2 kg of air at 200degc and 700 kpa.
liquid methanol is pumped from a large storage tank through a 1.256 inch id pipe at a rate of 3.00galmin.a at what rate
the density and associated percent crysallinity for two nylon 66 materials are shown as follows compute the desities of
Aluminum-lithium alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. A commercial aircraft skin material having a density of 2.47 g/cm3 is desired. Compute the concentration of Li (..
a well-insulated rigid vessel contains 3kg of saturated liquid water at 40onbspc. the vessel also contains an
a 3-kg particle is traveling with a velocity of 20 ms inclined an angle of 45 degrees with y-axis. its location can be
the average electrical generating capacity of the united states was about 475000 mw in 2007. if trends continue this
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