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A copper and nickel alloy has the following composition: 80wt% Cu and 20wt% Ni. Convert the composition to atomic percent.
0.1kg of water is contained within a piston-cylinder assembly at 100 degree c. the piston is free to move smoothly in
two tanks are connected by a valve. tank a contains air at 200 kpa volume of a 0.5 m3 and temperature of a 30oc. tank
A steam power plant operates on an ideal reheat-regenerative Rankine cycle with one reheater and two open feed water heaters. Steam enters the high-pressure turbine at 1,500 psia and 1,100 degrees Farenheit and leaves the low-pressure turbine at 1 ps..
a. motorcycle is used to stunt show to go over a valley .if the initial speed at a is u ms then evaluate a ?the minimum
argon gas enters a turbine operating at steady state at 100 bar 325 k and expands adiabatically to 40 bar 235 k with no
the system is released from rest with no slack in the cable and with the spring unstretched. determine the distanced s
A long electric wire of radius r0 generates heat at rate of q'''. The surface is maintained at uniform temp of T0. Write heat equation and boundary conditions for steady state one dimensional conduction.
it is found that 10 btus of heat must be supplied to a house in order to maintain its temperature at 70of when the
6 kg of an ideal gas is in a volume of 1 m3 at 250degc. the gas undergoes a constant pressure change of state until the
suppose that 1000 is deposited into an account that pays 5 intrest per year. at the end of each year th amount in the
Ideal Otto and Brayton cycles are operating from sea level atmospheric inlet conditions and a pressure ratio 15:1. Find the thermodynamic efficiencies (nth) for these two cycles. There should be two answers
a 100kg pure iron block at 27 degrees c is dropped into an insulated rigid tank that contains 0.1m3 of unused engine
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