Physics
posted by Alexa .
Water (η = 1.00E3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0120 m3/s. As the figure below shows, there are two vertical tubes that project from the pipe. Assume that H = 0.0421 m and L = 0.706 m. Calculate the radius of the horizontal pipe.

Use Poiseuille's Law, and sub rho*g*h for (P2P1)