=+12-28 Compute the lost pressure for a diverging wye fitting with a 45-degree branch. The flow rate in the 12 in. (30 cm) upstream section is 800 cfm (0.38 m3/s), and the flow rate in the 6 in. (15 cm)

branch is 250 cfm (0.12 m3/s). The downstream section has a diameter of 10 in. (25 cm).