Formulas

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This is the formulas to figure out the size and speed of the tunnel.

9 m/s = 1770 ft/min ft2

9m/s / 1in/2.54cm / 100cm/1m / 1ft/12in / 60s/1min = 54,000/30.48

Final =1720 ft/min

A= .25 1ft^2 * 1770ft = 1720ft^3/min
6 in^2 440 cfm

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