Engineering, 29.10.2019 22:31, Kode19001
Stainless steel ball bearings (rho = 8085 kg/m3 and cp = 0.480 kj/(kg◦c)) having a diameter of 1.5 cm are to be quenched in water at a rate of 900 per minute. the balls leave the oven at a uniform temperature of 1000◦c and are exposed to air at 25◦c for a while before they are dropped into the water. if the temperature of the balls drops to 900◦c prior to quenching, determine the rate of heat transfer from the balls to the air.
Answers: 2
Engineering, 04.07.2019 18:10, sarahgrindstaff123
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10, caitlynnpatton1208
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
Answers: 3
Engineering, 04.07.2019 18:10, ijohnh14
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
Stainless steel ball bearings (rho = 8085 kg/m3 and cp = 0.480 kj/(kg◦c)) having a diameter of 1.5 c...
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