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A cylinder has 0.1 kg air at 25oC, 200 kPa with a 5 kg piston on top. A valve at the bottom is opened to let the air out and the piston drops 0.25 m towards the bottom. What is the work involved in this process? What happens to the energy?
when the three blocks are released from rest they accelerate with a magnitude of 0.660 ms2. block 1 has mass m block 2
a 2250 l tank contains 5.682 kg of steam at 5 bar. determine the temperature and z compressibility of steam using a.
an ideal gas at 300 k has a volume of 15 liters at a pressure of 15 atm. calculate 1 the final volume of the system 2
a rankine cycle is to drive an electric generator to produce 600 mw of electricity. the generator is 95 efficient.the
how long is required for half the ice cube to melt? State clearly all the assumptions you make in formulating your model of this problem.
optimus prime is flying straight up at 67 ms when he accidentally drops his mega-ray blaster and it falls 76 m to the
you are trying out for the position of place-kicker on a professional football team. with the ball teed 50.0 m from the
A layer of water seperates two smooth surfaces a distance of 2r. Derive an experssion for the force needed to pul the two surfaces apart. Consider the bottom surface fixed. What is the force needed to seperate the top surface?
Evaluate thermal efficiency of the cycle
the collar a is free to slide along the smooth shaft b mounted in the frame. the plane of the frame is vertical.
for a metal that has a yield strength of 401 mpa and a plane strain fracture toughness kic of 21 mpa m12 compute the
blocks a and b weigh 25 lb and 10 lb respectively and they are both at a height 6 ft above the ground when the system
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