A window is left slightly open while the air conditioning system is running. The air conditioning blower develops a pressure of 2 in.H2O (gage) inside the house, and the window opening measures 1/8...

A window is left slightly open while the air conditioning system is running. The air conditioning blower develops a pressure of 2 in.H2O (gage) inside the house, and the window opening measures 1/8 in.  20 in. Neglecting friction, what is the flow rate of air through the opening, in scfm (ft3 /min at 608F, 1 atm)? How much horsepower is required to move this air?