Engineering, 06.08.2019 19:20 krystalsozaa
The steady-state temperature distribution in a one-dimensional wall of thermal conductivity 50 w/m k and thickness 50 mm is observed to be t(°c)=a+bx2, where a 200°c, b=-2000°c/m^2, and x is in meters. (a) what is the heat generation rate q in the wall? (b) determine the heat fluxes at the two wall faces. in what manner are these heat fluxes related to the heat generation rate
Answers: 1
Engineering, 04.07.2019 12:10
On a average work day more than work place firs are reorted
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Engineering, 04.07.2019 18:10
An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature
Answers: 2
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?
Answers: 3
Engineering, 05.07.2019 04:30
Technician a says that in a worm gear steering system, most excessive steering free play is usually found in the gearbox. technician b says that in a rack-and-pinion steering system, excessive free play can be found in the bushings. who is correct?
Answers: 2
The steady-state temperature distribution in a one-dimensional wall of thermal conductivity 50 w/m k...
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