일반물리학 1 — Fluids: Problem 43

43 The water flowing through a 1.9 cm (inside diameter) pipe flows out through three 1.5 cm pipes. (a) If the flow rates in the three smaller pipes are 26, 21, and 16 L/min, what is the flow rate in the 1.9 cm pipe? (b) What is the ratio of the speed in the 1.9 cm pipe to that in the pipe carrying 26 L/min?