Engineering, 12.11.2019 05:31 Mastersonisnot
Acertain linear two-terminal circuit has terminals a and b. under open-circuit conditions, we have vab =10 v. a short circuit is connected across the terminals, and a current of 2 a flows from a to b through the short circuit. part a determine the value of vab when a nonlinear elements that has iab = y vab is connected across the terminals. express your answer to three significant figures and include the appropriate units. thår o ? vab = value units submit request answer
Answers: 2
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 19:10
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
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Engineering, 06.07.2019 02:30
Air (c-1.006 kj/kg.k, r-0.287 kj/kg.k) enters a nozzle steadily at 280 kpa and 77°c with a velocity of 50 m/s and exits at 85 kpa and 320 m/s. the heat losses from the nozzle to the surrounding medium at 20°c are estimated to be 3.2 kj/kg. determine (a) the exit temperature and (b) the total entropy change for this process. solve this problem using constant specific heats.
Answers: 1
Acertain linear two-terminal circuit has terminals a and b. under open-circuit conditions, we have v...
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