Certain part of cast iron piping of a water distribution system involves a parallel section. Both parallel pipes have a diameter of 30 cm, and the flow is wholly turbulent. One of the braches (pipe A) is 1000 m long while the other branch (pipe B) is 3000 m long. If the flow rate through pipe A is 0.4 m3/s, determine the flow rate through pipe B. You may disregard minor losses. Confirm that the flow is wholly turbulent and therefore the friction factor is independent of Reynolds number.