Problem #1: A centrifugal compressor has a mass flow rate of 1.6 kg/s while rotating at 11,000 rpm. The impellor is a radial impellor meaning that the blades are strictly radial at exit (β2' = 0). The radius of the radial impeller at exit is 0.3 m with a blade width 0.01 m. Assume that the entrance flow is axial. For this compressor, the compressor efficiency is 83% and the slip coefficient is 0.9. (a) Clearly sketch the velocity triangles at the exit of the impellor. Include the flow slip and mark all the angles and velocities.