Engineering, 26.07.2019 16:10 QUEEN2267
Along homogeneous resistance wire of radius ro = 5 mm is being used to heat the air in a room by the passage of electric current. heat is generated in the wire uniformly at a rate of g=5' 10^7w/m^3 as a result of resistance heating. if the temperature of the outer surface of the wire remains at 180°c, determine the temperature at r = 2 mm after steady operation conditions are reached. take the thermal conductivity of the wire to be k=8 w/m x °c.
Answers: 3
Engineering, 04.07.2019 18:10
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
Answers: 1
Engineering, 04.07.2019 18:10
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
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
Along homogeneous resistance wire of radius ro = 5 mm is being used to heat the air in a room by the...
Physics, 04.12.2021 01:00
Mathematics, 04.12.2021 01:00
Mathematics, 04.12.2021 01:00
Mathematics, 04.12.2021 01:00
Computers and Technology, 04.12.2021 01:00
Social Studies, 04.12.2021 01:00
Mathematics, 04.12.2021 01:00