Engineering, 19.03.2020 04:54, juansebas35
A wound-field dc motor is driving a load whose torque requirement increases linearly with speed and reaches 5 Nm at a speed of 1,400 rpm. The armature terminal voltage is held to its rated value. At the rated Bf , the no-load speed is 1,500 rpm, and the speed while driving the load is 1,400 rpm. If Bf is reduced to 0.8 times its rated value, calculate the new steady state speed.
Answers: 2
Engineering, 04.07.2019 18:10, katelynn73
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
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Engineering, 04.07.2019 18:10, wyattlb97
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
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Engineering, 04.07.2019 19:10, Mimidj9279
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
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Engineering, 04.07.2019 19:10, netflixacc0107
What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?
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A wound-field dc motor is driving a load whose torque requirement increases linearly with speed and...
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