[1] Study the case 6.7 'pipe friction'(p.186) and use the Colebrook equation to obtain the coefficient of friction at 20 degrees refer to the chart below , by using Newton-Raphson method and simple fixed point iteration. (http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwjX6Ni1jvLoAhWGFogKHflLA2EQFjAAegQIAhAB&url=http%3A%2F%2Fdl.booktolearn.com%2Febooks2%2Fscience%2Fmathematics%2F9780073397962_Applied_Numerical_Methods_with_MATLAB_for_Engineers_and_Scientists_aafd.pdf&usg=AOvVaw1MhlzxZwE8N1KDxBFOowRa)

Temperature Density Specific weight N/m Vapor pressure kg/m N/m abs. 0C 5C 1000 1000 1000 999 998 997 996 Dynamic viscosity Ns/m 1.79 X 10-3 1.51 X 10-3 1.31 x 10-3 1.14 X 10-3 1.00 x 10-3 8.91 X 10-4 7.97 x 10-4 9810 9810 9810 9800 9790 9781 9771 10C 15C 20C 25C 30C Kinematic viscosity m/s 1.79 x 10-6 1.51 x 10-6 1.31 x 10-6 1.14 x 10-6 1.00 x 10-6 8.94 x 10-7 8.00 x 10-7 611 872 1230 1700 2340 3170 4250 Temperature Density Specific weight N/m Vapor pressure kg/m N/m abs. 0C 5C 1000 1000 1000 999 998 997 996 Dynamic viscosity Ns/m 1.79 X 10-3 1.51 X 10-3 1.31 x 10-3 1.14 X 10-3 1.00 x 10-3 8.91 X 10-4 7.97 x 10-4 9810 9810 9810 9800 9790 9781 9771 10C 15C 20C 25C 30C Kinematic viscosity m/s 1.79 x 10-6 1.51 x 10-6 1.31 x 10-6 1.14 x 10-6 1.00 x 10-6 8.94 x 10-7 8.00 x 10-7 611 872 1230 1700 2340 3170 4250