Water is flowing in a cylindrical pipe of varying circular cross-sectional area, and at all points the water completely fills the pipe.
Part A) At one point in the pipe, the radius is 0.155m . What is the speed of the water at this point if the volume flow rate in the pipe is 1.30m^3/s.
Part B) At a second point in the pipe, the water speed is 3.80m/s. What is the radius of the pipe at this point?