Physics, 08.07.2020 14:01 pnicetgodp3bqss
A motor is used to operate a lift. There is a man in the lift. The input power of the motor is 6200 watts. The lift and the man have a total mass of 580 kg. The lift moves up a distance of 12 m in 15 s. Calculate the tension in the cable when the lift is moving at constant speed.
Answers: 3
Physics, 23.06.2019 00:40, bravomichelle75
Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*
Answers: 1
Physics, 23.06.2019 11:00, BraceFaceZariaOn32
The temperature of a solution can change the solubility of a substance. the chart shows the solubility of the same solute at different temperatures in water. based on the chart, which solution was at the optimal temperature to allow for the greatest solubility? w x y z
Answers: 2
A motor is used to operate a lift. There is a man in the lift. The input power of the motor is 6200...
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