In Prob. 5.62 it was difficult to solve for because it appeared in both power and flow

In Prob. 5.62 it was difficult to solve for Ω because it appeared in both power and flow coefficients. Rescale the problem, using the data of Fig. P5.61, to make a plot of dimensionless power versus dimensionless rotation speed, enter this plot directly to solve Prob. 5.62 for Ω. Fig. P5.61