The 30 degree vertical bend in a pipe with a 2 ft diameter
carries water (rho = 62.4 lbm...
Engineering, 02.10.2019 01:30 stinematesa
The 30 degree vertical bend in a pipe with a 2 ft diameter
carries water (rho = 62.4 lbm/ft^3) at a rate of 31.4 cfs. if the
pressure p1 is 10 psi at the lower end of the bend, where the
elevation is 100 ft, and p2 is 8.5 psi at the upper end, where the
elevation is 103 ft, what will be the vertical component of force
that must be exerted by the "anchor" on the bend to hold it in
position? the bend itself weighs 300 lb, and the length l is 4
ft.
Answers: 2
Engineering, 04.07.2019 18:10
The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false
Answers: 1
Engineering, 04.07.2019 18:20
A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?
Answers: 3
Engineering, 04.07.2019 18:20
Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?
Answers: 2
Engineering, 04.07.2019 19:10
Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?
Answers: 3
Mathematics, 30.03.2020 16:42
Mathematics, 30.03.2020 16:42
Mathematics, 30.03.2020 16:43
Mathematics, 30.03.2020 16:43
History, 30.03.2020 16:43
Mathematics, 30.03.2020 16:43
Mathematics, 30.03.2020 16:44