A room measures 30 m by 45 m by 60 m if the heating and, Ask an Expert

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A room measures 3.0 m by 4.5 m by 6.0 m. If the heating and air-conditioning ducts to and from the room are circular with diameter of 0.30 m and all the air in the room is to be exchanged every 12 min,

(A) what is teh average rate of flow?

(B) WHat is the necessary flow speed in the duct? (Assume that the density of the air is constant).

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