Engineering, 13.11.2019 05:31 dria40
Hw7.4. a copper sphere of a diameter 5 cm at 177c is cooled by an air stream at 27c, as described below. the air stream velocity is 0.5 m/s at 1 atm. calculate (a) the average rate of heat convection over the entire surface of the sphere and (b) the rate of heat convection into the air stream
Answers: 3
Engineering, 03.07.2019 15:10
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
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 18:20
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
Engineering, 04.07.2019 18:20
The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?
Answers: 3
Hw7.4. a copper sphere of a diameter 5 cm at 177c is cooled by an air stream at 27c, as described...
Mathematics, 17.12.2020 23:20
History, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Geography, 17.12.2020 23:20
Social Studies, 17.12.2020 23:20
Physics, 17.12.2020 23:20