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## Homework Statement

With a given flow rate of 26 CFM of air and a pressure differential of 1.5 inches of Mercury between the start and end of the pipe, what is the inside diameter of pipe is necessary to maintain a flow velocity of 300 feet per second, assuming there are no losses along the length of the pipe.

## Homework Equations

This is the part I need help with. I'm not sure where to start.

## The Attempt at a Solution

I will attempt it as soon as I know which equation(s) to use.