MATLAB: An Introduction with Applications

6th Edition

ISBN: 9781119256830

Author: Amos Gilat

Publisher: John Wiley & Sons Inc

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Textbook Question

Chapter 8, Problem 29P

Estimated values of thermal conductivity of silicon at different temperatures are given in the following table.

T(K)	2	4	6	8	10	20	40	60
k(W/m-K)	46	300	820	1,560	2,300	5,000	3,500	2,100
T(K)	80	100	150	250	350	500	1,000	1,400
k(W/m-K)	1,350	900	400	190	120	75	30	20

(a) Make a plot of k versus T using log scale on both axes.

(b) Curve-fit the data vith a second-order polynomial y = ax²+ bx + C in which x = log(T) and y = log(k). Once the coefficients a, b, and c are determined, write an equation for k as a function of log(T). Use this equation for curve-fitting the data. Make a second plot that shows the data points with markers and the curve-fitted equation with a solid line.

(c) Repeat part (b) using a third-order polynomial.

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Chapter 8, Problem 28P

Chapter 8, Problem 30P

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Chapter 8 Solutions

MATLAB: An Introduction with Applications

Ch. 8 - Prob. 1P Ch. 8 - Plot the polynomial y=0.7x413.5x2+6x37 in the...Ch. 8 - Determine the polynomial y(x) that has roots at x...Ch. 8 - Use MATLAB to carry out the following...Ch. 8 - Use MATLAB to carry out the following...Ch. 8 - Use MATLAB to divide the polynomial...Ch. 8 - Use MATLAB to divide the ploynomial...Ch. 8 - The product of four consecutive even integers is...Ch. 8 - The product of three integers with spacing of 3...Ch. 8 - The product of three distinct integers is 6240....

Ch. 8 - A rectangular steel container (no top) has the...Ch. 8 - An aluminum container has the geometry shown in...Ch. 8 - A rectangular box (no top) is welded together...Ch. 8 - The probability P of selecting three distinct...Ch. 8 - Write a user-defined function that adds or...Ch. 8 - Write a user-defined function that multiplies two...Ch. 8 - Write a user-defined function that calculates the...Ch. 8 - A cylinder with base radius rand height h is...Ch. 8 - Consider the parabola: x = 2(y-2)2 +3,and the...Ch. 8 - The following data is given: x -5 -4 -1 1 4 6 9 10...Ch. 8 - 21. The boiling temperature of water TB at various...Ch. 8 - The U.S. population in selected years between 1815...Ch. 8 - The number of bacteria NBmeasured at different...Ch. 8 - Growth data of a sunflower plant is given tn the...Ch. 8 - Use the growth data from Problem 24 for the...Ch. 8 - 26. The following points are given: x 1 2.2 3.7...Ch. 8 - The standard air density. D (average of...Ch. 8 - Write a user-defined function that determines the...Ch. 8 - Estimated values of thermal conductivity of...Ch. 8 - Measurements of the concentration, C, of a...Ch. 8 - Use the data from Problem 30 for the following:...Ch. 8 - The relationship between two variables y and x is...Ch. 8 - Curve-lit the data from the previous problem with...Ch. 8 - When rubber is stretched, its elongation is...Ch. 8 - The transmission of light through a transparent...

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