A garden hose has an internal diameter of 1.5 cm. It's connected to a sprinkler that consists merely of an enclosure with 14 holes, each 0.20 cm in diameter. The water in the hose moves with a speed of 3.0 m/s.
a. At what speed does it leave the sprinkler?
b. How long does it take for the lawn to recieve 2m^3 of water?