Engineering, 12.03.2020 05:05, lizzy2951
According to Evangelista(2008) the university’s Student Information System (SIS) of Nueva Vizcaya StateUniversity is a secure, web accessible interactive computer system that allows user access to gradereports, transcripts, schedule of classes, and remaining balance for the semester and register for classesonline. Through the system, students would be assigned a unique identification number. All data to andfrom the university would use that unique identifier. The use of individual student records would: 1)Increase the admissions capacity to follow a student’s progress over time; 2) provide better quality datato drive more enlightened policy decisions resulting in enhanced educational opportunities for allstudents; 3) reduce data collection burden through a web enabled SIS; and 4) as a tool of parents inmonitoring the academic performance of their children
Answers: 1
Engineering, 04.07.2019 18:10, redrosesxx
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
Engineering, 04.07.2019 18:20, maciemarklin79981
A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?
Answers: 3
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
Engineering, 04.07.2019 19:10, 592400014353
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
According to Evangelista(2008) the university’s Student Information System (SIS) of Nueva Vizcaya St...
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