As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 80F, 1 atm. The air-handling unit delivers air at 45, 1 atm to a duct system with three branches consisting of two 26-in.-diameter ducts and one 50-in. duct. The velocity in each 26-in. duct is 13 ft/s. Assume steady state operation and ideal gas behavior for the air. 49-50m. -1-1-45 V-V 1+A1A-14-1 T30 (AV) Determine the mass flow rate of air entering the air-handling unit, in lb/s, the volumetric flow rate in each 26-in. duct, in ft/min, and the velocity in the 50-in. duct, in ft/s. +1 Air-andling unit As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 80F, 1 atm. The air-handling unit delivers air at 45, 1 atm to a duct system with three branches consisting of two 26-in.-diameter ducts and one 50-in. duct. The velocity in each 26-in. duct is 13 ft/s. Assume steady state operation and ideal gas behavior for the air. 49-50m. -1-1-45 V-V 1+A1A-14-1 T30 (AV) Determine the mass flow rate of air entering the air-handling unit, in lb/s, the volumetric flow rate in each 26-in. duct, in ft/min, and the velocity in the 50-in. duct, in ft/s. +1 Air-andling unit As shown in the figure, air with a volumetric flow rate of 14,000 ft/min enters an air-handling unit at 80F, 1 atm. The air-handling unit delivers air at 45, 1 atm to a duct system with three branches consisting of two 26-in.-diameter ducts and one 50-in. duct. The velocity in each 26-in. duct is 13 ft/s. Assume steady state operation and ideal gas behavior for the air. 49-50m. -1-1-45 V-V 1+A1A-14-1 T30 (AV) Determine the mass flow rate of air entering the air-handling unit, in lb/s, the volumetric flow rate in each 26-in. duct, in ft/min, and the velocity in the 50-in. duct, in ft/s. +1 Air-andling unit