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A silicon wafer with a diameter of 200 mm is processed over a circular area whose diameter = 190 mm. The chips to be fabricated are square with 10 mm on a side. The density of point defects in the surface area is 0.0047 defects/cm2 . Determine an estimate of the number of good chips using the Bose-Einstein yield computation.
The thermal efficiency of a reversible power cycle operating between hot and cold reservoirs is 20%. Evaluate the coefficient of performance of a reversible refrigeration cycle operating between the same two reservoirs.
an automotive repair shop stock many sizes of tires. one particular size and model is purchased for 15 and sold for 30.
a system of propane and n-butane exists in two phase vapor liquid equilibrium at 10 bar and 323 k. the mole fraction
a 30-kg aluminum block initially at 140 c is brought into contact with a 40-kg block of iron at 60 c in an insulated
assuming a znd structure determine the key properties for the detonation wave described in problem 1. propagating
starting out a trip from a mountain you inflate the tires on your car to a pressure of 321kpa pi when the temperature
heat transfer to a 1.5-kg block of ice at -10 degrees c melts it to liquid at 10 degrees c in a kitchen. how much work
The power unit A of the tractor-scraper has a mass of 4 Mg with mass center at G1. The fully loaded trailer-scraper unit B has a mass of 24 Mg with mass center at G2. Positioning of the scraper is con- trolled by two hydraulic cylinders EF, one on..
while water condensate and vapor-X are removed by means not shown in the sketch. At a pressure of 1 bar, fluid-X has a saturation temperature and a latent heat of vaporization of Tsat = 80°C and hfg = 700,000 J/kg, pressure p for the steam, assu..
a refrigerator with a coefficient of performance of 4 transfers heat from a cold region at -20c to a hot region at 30c.
Explain why an object-oriented approach to software development may not be suitable for real-time systems.
a metal matrix composite mmc is made of a 2024 al alloy matrix and continuous nbspboron fibers. the boron fibers are
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