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A 3-D cubic unit cell contains four atoms whose centers are positioned halfway up along each of the vertical cell edges and one atom each centered in the middle of the top and bottom faces.
(a) How many atoms are there per unit cell (atoms actually inside the unit cube)?
(b) Make a sketch (as best you can) of the lattice characterized by the part (a) unit cell. Use dots to represent the atoms and include at least three parallel plancs of atoms.
c) What is the name of the standard unit cell used to characterize the lattice sketched in part (b)?
Air in a piston-cylinder device is compressed from an initial state (temperature = 80 °C, pressure = 100 kPa, volume = 0.3 m3) to a final state (temperature = 250 °C, pressure = 600 kPa), during a polytropic process (n = 1.28094065700868). What is th..
The answer is no, and the reason is that mutual inductances must exist between stator phases as given by (7.9-6). To show this, take a two-pole,
Steam at 3MPa and 400C enters an adiabatic nozzle steadily with a velocity of 40m/s and leaves at 2.5MPa and 300m/s. Determine the exit temperature in degrees C. the ratio of the inlet to exit area
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Steam enters an adiabatic nozzle steadily, at 2.5 Mpa and 400°C with a velocity of 50 m/s and exits at 1 MPa and 380 m/s. If the nozzle has an inlet area of 65 cm2, determine: The exit temperature. The rate of entropy generation for this process, in..
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The landing gear on a commercial aircraft experiences an impulse load upon landing. Assuming seven such landings per day on average, how long would it take before the landing gear has been subjected to 108 load cycles? (Answer in years)
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