MATLAB: An Introduction with Applications
5th Edition
ISBN: 9781118629864
Author: Amos Gilat
Publisher: WILEY
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Chapter 9, Problem 15P
A 108-in.-long beam AB is attached to the wall with a pin at point A and to a 68-in.-long cable CD. A load W = 250 lb is attached to the beam at point B. The tension in the cable T is given by:
where L and LCare the lengths of the beam and the cable, respectively, and d is the distance from point A to point D. where the cable is attached. Make a plot of T versus d. Determine the distance d where the tension in the cable is the smallest.
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The acidity or alkalinity of a solution is measured using pH. A pH less than 7 is acidic; a pH greater than 7 is alkaline. The accompanying data represent the pH in samples of bottled water and tap
water. Complete parts (a) and (b).
Click the icon to view the data table.
(a) Determine the mean, median, and mode pH for each type of water. Comment on the differences between the two water types.
Select the correct choice below and fill in any answer boxes in your choice.
A. For tap water, the mean pH is
(Round to three decimal places as needed.)
B. The mean does not exist.
Data table
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7.64 7.45 7.46 7.50 7.68
7.45 7.10 7.56 7.46 7.52
5.15 5.09 5.31 5.20 4.78
5.52 5.31 5.13 5.31 5.21
7.69
7.46
5.23
5.24
Print
Done
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The median for the given set of six ordered data values is 29.5.
9 12 23 41 49
What is the missing value?
The missing value is ☐.
Find the population mean or sample mean as indicated.
Sample: 22, 18, 9, 6, 15 □
Select the correct choice below and fill in the answer box to complete your choice.
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Chapter 9 Solutions
MATLAB: An Introduction with Applications
Ch. 9 - Prob. 1PCh. 9 - Determine the solution of the equation 2cosx0.5x=1...Ch. 9 - 3. Determine the solution of the equation .
Ch. 9 - 4. Determine the solution of the equation .
Ch. 9 - 5. A box of mass m = 25 kg is being pulled by a...Ch. 9 - 6. A scale is made of two springs, as shown in the...Ch. 9 - An estimate of the minimum velocity required for a...Ch. 9 - 8. The diode in the circuit shown is forward...Ch. 9 - 9. Determine the minimum and the maximum of the...Ch. 9 - A paper cup shaped as a frustum of a cone with...
Ch. 9 - 11. Consider again the block that is being pulled...Ch. 9 - 12. Determine the dimensions (radius r and height...Ch. 9 - 13. Consider the ellipse. Determine the sidesa...Ch. 9 - 14. Planck’s radiation law gives the spectral...Ch. 9 - A 108-in.-long beam AB is attached to the wall...Ch. 9 - 16. Use MATLAB to calculate the following...Ch. 9 - 17. Use MATLAB to calculate the following...Ch. 9 - 18. The speedofarace carduring the first seven...Ch. 9 - 19. The shape of the centroid line of the Gateway...Ch. 9 - The flow rate Q (volume of fluid per second) in a...Ch. 9 - 21. The electric field E due to a charged circular...Ch. 9 - Prob. 22PCh. 9 - The variation of gravitational acceleration g with...Ch. 9 - 24. A cross section of a river with measurements...Ch. 9 - Prob. 25PCh. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Prob. 28PCh. 9 - Prob. 29PCh. 9 - Prob. 30PCh. 9 - Prob. 31PCh. 9 - Use a MATLAB built-in funtion to numerically...Ch. 9 - The growth of a fish is often modeled by the von...Ch. 9 - A water tank shaped as an ellipsoid (a = 1.5 m, b...Ch. 9 - The sudden outbreak of an insect population can be...Ch. 9 - An airplane uses a parachute and other means of...Ch. 9 - Prob. 37PCh. 9 - An RL circuit includes a voltage source vs, a...Ch. 9 - Prob. 39PCh. 9 - The velocity, v, of an object that falls freely...
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