Engineering, 29.08.2020 18:01 blakemtyy
The time-domain expressions for three line-to-neutral voltages at the terminals of a Y-connected load are:
Answers: 1
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
Engineering, 06.07.2019 02:30
On solidification from a melt, the polymer polyethylene forms a semi-crystalline spherulite structure. (i) sketch an individual spherulite and label the amorphous and crystalline regions. (ii) draw a schematic to show the changes in specific volume with temperature during cooling from the melt, comparing it to the theoretical extremes of fully crystalline and fully amorphous (indicate tm and tg)
Answers: 2
Engineering, 06.07.2019 05:30
Around steel bar, 20 mm in diameter and 400 mm long, is placed concentrically within a brass long. tube which has an outside diameter of 30 mm and thickness 4 mm. the tube is 400 mm the upper end of the vertically placed compound bar is rigidly fixed and a collar is fitted to the bottom end. the application of a load p results in the compound rod storing a total of 5 j of energy.calculate (a) the gradually applied load; (b) the suddenly applied load; (c) the impact load that falls 100 mm and induces 5 j of energy; (d) the instantaneous stresses in both materials; and (e) the instantaneous elongation of the compound rod (egt = 200 gpa and egr = 100 gpa).
Answers: 2
The time-domain expressions for three line-to-neutral voltages at the terminals of a Y-connected loa...
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