Engineering, 04.12.2019 23:31 alen919
When it comes to making a good impression in a work setting, it does not apply to an initial contact, since both people are meeting for an express purpose. you have a 5 to 10 minute grace period before people form their impression of you. your handshake and facial expression dominate all other elements of your appearance. you have only seconds in which a person will accept or reject an employee or firm.
Answers: 2
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
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
Answers: 3
Engineering, 04.07.2019 18:20
How much power could a wind turbine produce if it had the following specifications? cp = 0.45 -d=1.2kg/m3 d=50m v 5m/s
Answers: 2
Engineering, 06.07.2019 03:10
Steel balls 12 mm in diameter are annealed by heating to 1150 k and then slowly cooled to 400 k in an air att 325 k and h -20 w/m2 k. assume the properties of the steel to be k- 40 w/m k,p 7800 kg/m3, and cp 600 j/kg k. a. determine whether lumped system method can be used to analyze this problem and if so why" b. determine the time required for the cooling process. c. determine the total amount of heat lost from each ball to the ambient air
Answers: 1
When it comes to making a good impression in a work setting, it does not apply to an initial contact...
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