//Solution 3-13 WD=get_absolute_file_path('3_13_solution.sce'); datafile=WD+filesep()+'3_13_example.sci'; clc; exec(datafile) H = H / 100; //converting height from [cm] to [m] R = D / 2 / 100; //radius of cylinder [m] h_0 = h_0 / 100; omega = sqrt(4 * g * (H - h_0) / R**2); //from equation for the free surface of liquid ndot = omega / (2 * %pi) * 60; //rotational speed [rpm] printf("Rotational speed of the container must be restricted to %1.2f rpm to avoid any spill of liquid as a result of centrifugal effect", ndot); z_0 = h_0 - omega^2 * R^2 / (4 * g); //height of liquid at the center [m] printf("\nHeight of liquid at the center is %1.2f m>0 hence our assumption is valid", z_0);