Nitrogen discharges isentropically through a nozzle from a reservoir. The pressure from section 1 of the nozzle is 10,445.6 pounds per square foot, and the Mach number is 0.45. A mercury manometer is attached to the nozzle's two portions, section 1 and section 2, where the velocity is accelerated to 480 meters per second. Calculate the temperature at section 2 if the mercury manometer measures a change in height of 3.9 feet. For Nitrogen R = 0.29686 kJ/kg·K, and cp = 1.039 kJ/kg·K.