The stress intensity factor K at a crack in a beam exposed to pure M bending M is given by: is a parameter that depends on the geometry of the specimen and crack. For the case of pure bending, Write a program in a script file that calculates the stress intensity factor K. The program should read the values of M, b, t, and a from an ascii text file using the load command. The output should be in the form of a paragraph combining text and numbers,- i.e., something like: "The stress intensity factor for a beam that is 0.25 m wide and 0.01 m thick with an edge crack of 0.05 m and an applied moment of 20 N-m is XX Pa-sqrt(m)." where XX stands for the value of K. Use the program to calculate K when M = 20 N-m, b = 0.25 m, i = 0.01 m, and a = 0.05 m