Hi can you help me solve this. i'm not sure on how to do it.

through BD? Anwwor to Ble nearest 0.4m. For the syutem: - all pipet have a dameter of 22mm - Al pipes are smooth and the Blasius formula may be uned. - The rrass flow rate trough BD is 1kg/s - The length of poe BD is 1.2m. - al the forss are inartally domineled. - The presture of the certral distribution system is fixed and unaffected by changes to the piping rystem. Thwe dsagram is schematic and the lengths et DC and DD may be very different. Selected Anwwer: [None Giver! Corretanswer 4.71=0.1