Engineering, 14.12.2020 21:10 bskyeb14579
hi guys, I need help with my assignment about analyzing the main challenges regarding national agriculture and food systems, from environmental, economic, and socio-cultural points of view
Answers: 1
Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
Answers: 1
Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Engineering, 04.07.2019 19:10
For a process taking place in a closed system containing gas, the volume and pressure relationship is pvi-constant. -1.5 bar, the process starts with initial conditions, pi = =0.03 m3 and ends with final volume, v2-0.05 m3 determine the work done by the gas.
Answers: 2
hi guys, I need help with my assignment about analyzing the main challenges regarding national agric...
Geography, 05.10.2019 08:00
Mathematics, 05.10.2019 08:00
Mathematics, 05.10.2019 08:00
Mathematics, 05.10.2019 08:00
English, 05.10.2019 08:00
Biology, 05.10.2019 08:00
Biology, 05.10.2019 08:00
History, 05.10.2019 08:00
Mathematics, 05.10.2019 08:00
English, 05.10.2019 08:00
Arts, 05.10.2019 08:00