An old-fashioned barbell is considered a cylindrical bar of length LB and radius RB, with a sphere on the each end of radius RS. Here's an image: Write a script file that sets 3 variables (LB, RB, RS) and calculates the volume of this barebell (use variable name volume). All measurements are in inches. Note that MATLAB defines a variable pi as the value of pi; use this variable in your computations. If you need to raise a value to a power, use MATLAB's exponentiation operator^. Print your volume to the screen using the disp function with a useful message, such as: "The volume of the barbell is: *** in^3". When you submit your code for testing, use a cylindrical bar length of 6 inches, a cylindrical bar radius of 1.5 in, and a sphere of radius 3 in. Remember: 1. Develop your code in MATLAB in the script file, named projecto.m