The following equation can be used to model the deflection of a sailboat mast subject to a wind force: di (2-3) where f = wind force, E = modulus of elasticity, L = mast length, and I = moment of inertia. Note that the second order differential equation can be decoupled into the following two first order differential equations: =w de EU (2-2) dz Write a program that uses the fourth-order Runge-Kutta method to calculate the deflection distribution along the mast and plot it against z if y = 0 and dy/dz= 0 at z = 0. Use parameter values of f = 60, L = 30, E = 1.25 x 10®, and I = 0.05 for your computation For the first three problems submit: a copy of any script and function used in the problem (m), a copy of the command line input/output associated with the problem, any plots generated, and a brief summary (one or two sentences).

Jason, samantha, ravi, sheila, and ankit are preparing for an upcoming marathon. each day of the week, they run a certain number of miles and write them into a notebook. at the end of the week, they would like to know the number of miles run each day, the total miles for the week, and average miles run each day. write a program to them analyze their data. your program must contain parallel arrays: an array to store the names of the runners and a two-dimensional array of five rows and seven columns to store the number of miles run by each runner each day. furthermore, your program must contain at least the following functions: a function to read and store the runners’ names and the numbers of miles run each day; a function to find the total miles run by each runner and the average number of miles run each day; and a function to output the results. (you may assume that the input data is stored in a file and each line of data is in the following form: runnername milesday1 milesday2 milesday3 milesday4 milesday5 milesday6 milesday7.)