Engineering, 31.03.2020 00:39 juansantos3328
Copper spheres of 20-mm diameter are quenched by being dropped into a tank of water that is maintained at 280 K . The spheres may be assumed to reach the terminal velocity on impact and to drop freely through the water. Estimate the terminal velocity by equating the drag and gravitational forces acting on the sphere. What is the approximate height of the water tank needed to cool the spheres from an initial temperature of 360 K to a center temperature of 320 K?
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
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
Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables
Answers: 1
Engineering, 04.07.2019 18:10
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?
Answers: 3
You know the right answer?
Copper spheres of 20-mm diameter are quenched by being dropped into a tank of water that is maintain...
Questions
Business, 04.12.2020 06:50
Mathematics, 04.12.2020 06:50
Mathematics, 04.12.2020 06:50
Chemistry, 04.12.2020 06:50
SAT, 04.12.2020 06:50
Chemistry, 04.12.2020 06:50
Mathematics, 04.12.2020 06:50
Mathematics, 04.12.2020 06:50
History, 04.12.2020 06:50
Mathematics, 04.12.2020 06:50
Mathematics, 04.12.2020 06:50
Chemistry, 04.12.2020 06:50
Biology, 04.12.2020 06:50
