Engineering, 07.09.2021 03:10 cmariecarrizales
Choose a product of engineering, such as bridges, skyscrapers, irrigations systems. Create a presentation using softwareâsuch as PowerPoint, Prezi, or another of your choosingâto illustrate at least three major changes in this product of engineering. You should have images to illustrate the changes as well as notes about how and why these changes occurred. Remember, engineering needs to adapt to both improvements in technology and changing social needs, so consider how the changes you identify reflect both of these influences. Your presentation should contain relevant images that reflect your points. All written content should be free of mechanical errors and easy to read. At the end of your presentation, include a list of websites or other sources you used to gather your information. You list should include a minimum of three sources.
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
Engineering, 04.07.2019 18:20
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
Engineering, 04.07.2019 18:20
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
Engineering, 04.07.2019 18:20
An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.
Answers: 3
Choose a product of engineering, such as bridges, skyscrapers, irrigations systems. Create a present...
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