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A 10 kg metal block initially at 200 degrees Celsius and 1 MPa is heated to 500 degrees Celsius and 100 MPa. The metal block has a density of 2000kg/m^3 and a specific heat of 2kJ/kg*K. Calculate the change in the total internal energy and enthalpy of the metal block. Assume the metal block as an incompressible substance and its specific heat as constant.
the work on a system with a mass 100 lbm is known to be 10 btus. if there is no change in potential energy and the
a piston-cylinder initially contains 2.52 kg saturated liquid water at 200 degrees celcius. now heat is transferred to
water enters an insulated nozzle operating under steady conditions at a pressure of 60 psia a temperature of 350 degf
a 2 lb particle is sliding along a at horizontal frictionless surface with a velocity of 10 fts along the x-axis. when
Now suppose the mean time to failure (mf) on the expose machine is 60 hours and the repair time is exponentially distributed with a mean of 2 hours (mr). What are the effective mean and CV of the process time for a job of 60 panels?
if the coefficient of rolling resistance of a cylinder on a flat surface is 0.5inch at what inclination of the surface
the state of liquid water is changed from 50 psia and 50 degrees f to 2000 psia and 200 degrees f. determine the change
a popular method of cooling homes in the southwest us is the evaporative cooler. it cools air entering a home by
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
a vessel contains 2 litres of gas at a pressure of 300kpa and a temperature of 27c .3 litres of gas at the same
Determine the increase in internal energy of 2 kg of argon if its temperature increases from 30C to 130C
a commuter train travels along a straight path from the lincoln street stop to the san francisco street stop in six
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