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g100num [7]
3 years ago
15

In a building with 10.000 cubic feet where the air changes every two hours, what the rate of air change? A. 167.7 cfm B. 83.3 cf

m C. 133.3 cfm D. 50 cfm
Physics
2 answers:
stepladder [879]3 years ago
3 0

Answer:

B. 83.3 cfm

Explanation:

given that the rate of change is,

= 10000 ft³ per 2 hour  (note 2 hours = 60 min x 2 = 120 min)

=  10000 ft³ per 120 min

= 10000 / 120  ft³ per min

= 83.3 ft³ per min

PolarNik [594]3 years ago
3 0
The answer is b I hope it helps
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