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Consider a well-insulated horizontal rigid cylinder that is divided into two compartments by a piston that is free to move but does not allow either gas to leak into the other side. Initially, one side of the piston contains 1 m3 of nitrogen gas at 500 kPa and 120?C while the other side contains 1 m3 of helium gas at 500 kPa and 40?C. Now thermal equilibrium is established as a result of heat transfer through the piston. Using constant specific heats as in problem 1, determine the final equilibrium temperature in the cylinder. What are the respective volumes of the gases at equilibrium? What would the temperature be if the piston were not free to move? In this case, what would the respective pressures be?
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The boom OA carries a load P and is supported by two cables as shown. Knowing that the tension is 510 N in cable AB and 765 N in cable AC, determine the magnitude and direction of the resultant of the forces exerted at A by the two cables.
problem 1 the u-tube manometer shown below is open to the atmosphere and partiallynbspfilled with water so that the
five kilograms of water at saturated liquid phase fills in a piston-cylinder device at 150oc. the device is now heated
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