Engineering, 23.12.2019 19:31, bentonknalige
Consider a list of randomly generated 4-letter "words" printed on a paper. the letters cannot be repeated. (a) at least how many of these "words" should be printed to be sure of having at least 6 identical "words" on the list
Answers: 2
Engineering, 04.07.2019 18:20, miguel454545
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, jimena15
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
Consider a list of randomly generated 4-letter "words" printed on a paper. the letters cannot be rep...
Chemistry, 09.12.2019 16:31
English, 09.12.2019 16:31
Biology, 09.12.2019 16:31
Biology, 09.12.2019 16:31
Social Studies, 09.12.2019 16:31