The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. air enters a set of these nozzles at 300 psia and 700°f with a velocity of 82 ft/s and exits at 250 psia and 645°f. calculate the velocity at the exit of the nozzles. the specific heat of air at the average temperature of 672.5°f is cp = 0.253 btu/lbm·r.

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.