(II) What diameter must a 15.5-m-long air duct have if the
Chapter 10, Problem 61P(choose chapter or problem)
Problem 61P
(II) What diameter must a 15.5-m-long air duct have if the ventilation and heating system is to replenish the air in a room 8.0 m X 14.0 m X 4.0 m every 15.0 min? Assume the pump can exert a gauge pressure of 0.710 X 10-3 atm.
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