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A piston-cylinder assembly fitted with a spring. The cylinder contains water, initially at 538oC, and the spring is in a vacuum. The piston face, which has an area of 125 cm2 , is initially at x1=50 cm. The water is cooled until the piston face is at x2=40 cm. The force exerted by the spring varies linearly with x according to F=kx where k=350 N/cm. Friction between the piston and the cylinder is neglible. For the water determine a. The initial and final pressures, and the amount of water present b. Work and heat transfer
suppose that the minimum and maximum ages for typical textbooks currently used in college courses are 2 and 8 years.
an electromedical cell is composed of pure copper and pure lead electrode immersed in solution of their respective
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The die characteristic is Q_x = 0.0015p where p is the head pressure in psi. Determine the flight angle that maximizes the flow rate Q_x and graph it.
three coupled street cars are moving at a speed of 32 kmhr down a 7 degree incline. each car has a weight of 198 kn.
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a rugged instrument used frequently for monitoring gas velocity in smoke stacks consists of two open tubes oriented to
The block is a cube that is 300mm on each side. Assume the block is incredibly tall. At steady state, what is the velocity of the block?
consider the sysstem shown in figure 3-45 where m 2 kg b 4 nxm and k 20 nm. assume that x0 0.1 m and xdot0 0. the
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