# We Helped With This MATLAB Programming Homework: Have A Similar One?

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Category Programming MATLAB Undergraduate Solved Numerical Analysis Assignment Help In Matlab

## Short Assignment Requirements

For each problem, 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).

## Assignment Description

ENME 303 HW12

Due Monday, December 10th by 10:00 am

For each problem, 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).

### Problem 1

The rate of heat flow by conduction between two points on a cylinder heated at one end is given by

dQ         dT             where                                     λA  == constant cylinder’s cross sectional area                              Tt = = time temperature

A dt  dx                        Q = Heat flow      x = distance from the heated end

Because the equation involves two derivatives, we will simplify this equation by letting

dT      100(Lx)(20t)                        where     L = length of the rod

dx             100xt

Combine the two equations and compute the heat flow for t = 0 to 25 s using the Euler’s method and the second order Runge-Kutta methods (Heun). The initial condition is Q(0) = 0 and the parameters are λ = 0.5 cal·cm/s, A = 12 cm2, L = 20 cm and x = 2.5 cm. Plot your results in one graph and comment on your results.

### Problem 2

The following equation can be used to model the deflection of a sailboat mast subject to a wind force:

d y2              f              2

      Lz

dz2 2EI

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:

dy w           dw f Lz2 dz         dz 2EI

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 × 108, and I = 0.05 for your computation.

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