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A 75 kg metal block initially at 80 degrees Celsius is dropped into a well insulated tank that contains 50 kg of water at 1 atm pressure and 20 degrees Celsius. The metal block and water are allowed to reach thermal equilibrium at a temperature of 35 degrees Celsius. Assume the specific heat of the metal block is constant.
A) Determine the specific heat of the metal block
B) Determine the entropy generation associated with this process
C) Is the process reversible, irreversible or impossible?
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given the following stress components sigma x 12000 psi sigma y 8000 psi sigma z -6000 psi sigma xy 9000 psisigma yz
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