Problem to water the yard you use a hose with a diameter of, Ask an Expert

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Problem: To water the yard, you use a hose with a diameter of 3.9 cm. Water flows from the hose with a speed of 1.3 m/s. If you partially block the end of the hose so the effective diameter is now 0.55 cm,

Part A: With what speed does water spray from the hose?

I need help to find with what speed does water spray from the hose.

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