Engineering, 18.07.2019 19:20 Seaisnowblue
Nitrogen expands isentropically in a piston cylinder device from a temperature of 500k while its volume doubles. what is the final temperature of the nitrogen, and how much work did the nitrogen do against the piston, in kj/kg?
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:10
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
Engineering, 04.07.2019 18:20
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
Engineering, 04.07.2019 19:10
Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.
Answers: 2
You know the right answer?
Nitrogen expands isentropically in a piston cylinder device from a temperature of 500k while its vol...
Questions
Mathematics, 27.02.2020 04:34
Mathematics, 27.02.2020 04:35
Biology, 27.02.2020 04:35
Engineering, 27.02.2020 04:35
Chemistry, 27.02.2020 04:35
Mathematics, 27.02.2020 04:35
