Solution: A 200 foot long fire hose with an inside diameter of 2.5 inches delivers 250 gallons per minute of 70 degree F water. The average velocity of the water in the hose (for this flow rate) is approximately 16.3 ft/s. The inside of the hose is smooth. a) Is the flow of water inside the hose laminar or turbulent? b) What is the frictional pressure drop along the 200 ft length?

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A 200 foot long fire hose with an inside diameter of 2.5 inches delivers 250 gallons per minute of 70 degree F water. The average velocity of the water in the hose (for this flow rate) is approximately 16.3 ft/s. The inside of the hose is smooth. a) Is the flow of water inside the hose laminar or turbulent? b) What is the frictional pressure drop along the 200 ft length?