Hello!
The question reads like this-
"What is the water flow rate in a 10 inch diameter pipe in gallons per minute when the flow velocity is 1.8 feet per second?"
I know I first need to calculate the area of the pipe, which I believe is .54 sq ft.
Can anyone help with the next step?
Thank you.
More correctly, it is .54 square feet times 1.8 feet per second which will give a result in "cubic feet per second"- but you want gallons per second. Both "cubic feet" and "gallons" are volume measures. You will need to look up how many gallons there are in a cubic foot. Then multiply "cubic feet per second" times "gallons per cubic foot" to get "gallons per second".