A pipe of internal diameter 1.5 meters carries seawater for desalination from Indian ocean. The pipe bifurcates into two smaller pipes with diameters 1.2 meters and 0.9 meters espectively to supply seawater to two desalination plants installed on the shore. Determine the mass flow rate of water in the large pipe before bifurcation if the mean flow velocity is 2 m/s. After bifurcation, determine the velocity of seawater in 0.9m diameter pipe if the velocity in 1.2 meter diameter pipe is measured as 1.5 m/s. Determine the mass flow rate in each section of the pipe.