Answer to Question #69323 in Physics for yoyo

Question

2 pipes with different diameters are connected. Inside the pipes is flowing water. The velocity of the water in the larger pipe is 5 m/s while the velocity of the water in the smaller pipe is thrice as fast as the larger pipe. The cross-sectional area of the smaller pipe is 0.0625 cm^2. Find the radius of the larger pipe.