A room has a volume of 120 m3 . An air-conditioning system
Chapter , Problem 57(choose chapter or problem)
A room has a volume of 120 m3 . An air-conditioning system is to replace the air in this room every twenty minutes, using ducts that have a square cross section. Assuming that air can be treated as an incompressible fl uid, fi nd the length of a side of the square if the air speed within the ducts is (a) 3.0 m/s and (b) 5.0 m/s.
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