Steam in a piston-cylinder assembly undergoes a polytropic process, with n = 2, from an initial state where p1 = 500 psi, v1 = 1.701 ft3/lbm, u1 = 1363.3 btu/lbm to a final state where u2 = 990.58 btu/lbm. during the process, there is a heat transfer from the steam of magnitude 342.9 btu. the mass of steam is 1.2 lbm. neglecting changes in kinetic and potential energy:
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Physics, 22.06.2019 06:00
Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.
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Physics, 22.06.2019 12:10
The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.
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Physics, 22.06.2019 22:50
When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.
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Steam in a piston-cylinder assembly undergoes a polytropic process, with n = 2, from an initial stat...
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