3. (8 Points): Refer to Problem 8.26: Apply Euler turbine equation (Equation 8.127a) to a streamtube that enters a compressor rotor blade row at r = 2.5 ft with zero preswirl and exits the row at r = 2.7 ft and attains 1000 ft/s of swirl velocity in the absolute frame. Assume that the shaft rotational speed is w = 5000 rpm.