Question # 1
Multiple Select
In the following list, what are criteria that would be important...
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Engineering, 18.03.2021 02:40 jonmorton159
Question # 1
Multiple Select
In the following list, what are criteria that would be important to someone buying a Jersey cow?
milk production
health
age
hoof color
speed
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Answers: 2
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To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.
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