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an electron is in the lowest state of a gaas quantum well of width 15nm which can be treated as an infinitely deep
1 extend the theory of section 91 to include the difference in dielectric constant between gaas and algaas by matching
calculate the burstein shift in the absorption edge of a direct semiconductor with parabolic bands due to heavy doping
a contrasting situation is provided by electrons trapped in a gaas quantum well suppose that the well is 10 nm wide
a thick layer of gaas which can be treated as three-dimensional is pumped in such a way that at the band gap sketch the
although the relative motion and that of the centre of mass cannot in general be separated for an exciton in a quantum
a man pulls a suitcase from its handle making an angle of 45 degress above the horizontale while moving the suitcase
a machine operator produces the tension t in the control rod by applying the force p to the foot pedal determine the
rewrite the given lab assignmentquestion -1 determine the dc bias currents and voltages for a single stage bjt
discussion question 1 - using the south university online library or the internet research on isoenzymes of lactate
the combustion of 100 mole of octane c8h18 yields 8 moles of co2 900 moles of h2o and 470 moles of n2 the exhaust gases
100 kg of atmospheric air whose composition is given in example is cooled in a 0500 m3constant volume container to 200
a pneumatic motor in a highly explosive environment uses a mixture of the ideal gases argon and helium in equal parts
an insulated gas turbine is attached to the exhaust stack of an oil-fired boiler in a power plant the pressure and
1 an air-water vapor mixture at 147 psia 100degf and 404 relative humidity is contained in a 100 ft3nbspclosed tank the
the volume fractions of the gases in the atmosphere of mars measured at the surface of the planet where the total
an engineer at a party is handed a cold glass of beverage with ice in itthe engineer estimates the outside temperature
people often clean eyeglasses by holding them near their mouths and exhaling heavily on them this usually causes the
1 7000 m3nbspmin of air at 280degc and 0101 mpa with a relative humidity of 600 is to be cooled at constant total
1 a room containing 275 m3nbspof air at 100 atm pressure is to be humidified the initial conditions are tdb 240degc
a classroom contains 6000 ft3 of air-water vapor mixture at 100 atm total pressure the dry bulb temperature is 700degf
1 10000 ft3nbsph of moist air at 147 psia and 750degf is to be cooled to 450degf at constant total pressure find the
outside atmospheric air with a dry bulb temperature of 900degf and a wet bulb temperature of 850degf is to be passed
an airstream with a mass flow rate of 200 kgs a dry bulb temperature of 100degc and a wet bulb temperature of 800degc
exactly 200 m3nbspmin of air with a dry bulb temperature of 700degc and a wet bulb temperature of 500degc is