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2 years ago

Ruler game, HELPPPPP

Engineering

2 answers:

geniusboy [140]2 years ago

8 0

The answer would be D as the arrow is pointing halfway between 2 and 3 making it 2 and a half

viktelen [127]2 years ago

3 0

D! :D
Hope I helped!!

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Answer:

2062 lbm/h

Explanation:

The air will lose heat and the oil will gain heat.

These heats will be equal in magnitude.

qo = -qa

They will be of different signs because one is entering iits system and the other is exiting.

The heat exchanged by oil is:

qo = Gp * Cpo * (tof - toi)

The heat exchanged by air is:

qa = Ga * Cpa * (taf - tai)

The specific heat capacity of air at constant pressure is:

Cpa = 0.24 BTU/(lbm*F)

Therefore:

Gp * Cpo * (tof - toi) = Ga * Cpa * (taf - tai)

Ga = (Gp * Cpo * (tof - toi)) / (Cpa * (taf - tai))

Ga = (2200 * 0.45 * (150 - 100)) / (0.24 * (300 - 200)) = 2062 lbm/h

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2 years ago

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Answer:

Professional engineering license

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1 year ago

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