Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 18, Problem 3RQ
To determine
Write an algorithm to assign a letter grade in a course.
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For Questions 3 and 4: A cup of water was heated to a
temperature of 90°. It was placed in a refrigerator that had a
temperature of 11°C. The water cooled to a temperature of
17°C in 30 minutes. Let the following variables represent
the relevant quantities.
L = Temperature of the liquid
S= Temperature of the surroundings
t = Time
B = Initial temperature of the liquid (Temperature at t = 0
k = Cooling constant
3. Using the Equation Solver, find the value of k in the
equation L = (B - S)e -kt + S. Remember to set the
equation equal to zero and then enter it into the Solver.
Scenario
You are assigned a role as a mechanical engineer for a vehicle design manufacturing company. Your
department has a software to perform numerical differentiation and integration. To be able to verify the
results of using the software and validate these results, your department manager has asked you to
analytically perform some tasks to validate the results generated by the software.
Q: is the last two digits of your student Id number. If your number is (20110092) then Q=92.
P: is the last digit of your student Id Number. If your number is (20110092) then P=2,
If that digit equals zero then use P=1. Example: If your number is (20110040) then P=1.
Task 1
Determine the gradient of following functions at the given points:
a) x(t) = (2t7 + P t-2)² + (6vi – 5) when t = 1
5s+7
b) v(s) =
when s = 3
(s²-P)2
c) i(t) = 5(1 – In(2t – 1) )
when t= 1 sec.
d) V(t) =5sin(100nt + 0.2) Volts , find i(t) = 10 × x10-6 dV©)
Ampere when t= 1ms.
dt
e) y(t) = e¬(t-n) sin(Qt + P)
when t = n radian
f)…
I need help with a MATLAB code. I need to find two values of n, one that is positive and one that is negative, that will give all negative real roots. Can you help me find them?
function [r] = find_roots(n)
% Define constants I = 400; J = 150; x = (J/I) - 1; y = n - 1; Q = y + x*(y-1);
% Define the coefficients of the quadratic equation coefficients = [1, 0, (3*x+Q^2+1), 0, (3*x*Q+Q^2)];
% Find the roots r = roots(coefficients);
end
Chapter 18 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 18.1 - Create a written algorithm that determines the...Ch. 18.1 - Prob. 2CCCh. 18.1 - Create a flowchart that determines the dose of a...Ch. 18.1 - Create a flowchart that determines the state of...Ch. 18.2 - Prob. 5CCCh. 18.2 - Prob. 6CCCh. 18.3 - Assume the following variables have been defined:...Ch. 18.3 - Prob. 8CCCh. 18.3 - Write a short section of MATLAB code that will...Ch. 18.3 - Prob. 10CC
Ch. 18.3 - Prob. 11CCCh. 18.3 - Assume a user has responded to the question "Do...Ch. 18.3 - Assume a user has responded to the question "Do...Ch. 18.4 - Write MATLAB code to represent the following...Ch. 18.4 - Write MATLAB code to represent the following...Ch. 18.4 - Write a MATLAB function named sumTtUp that will...Ch. 18.4 - Prob. 17CCCh. 18.5 - A device constructed to throw various objects can...Ch. 18.6 - Prob. 19CCCh. 18.6 - Prob. 20CCCh. 18.7 - Write MATLAB code to modify the previous gravity...Ch. 18.7 - Write MAT LAB code using try-catch to ask the user...Ch. 18 - Create a written algorithm and flowchart to...Ch. 18 - The Occupational Safety Health Administration...Ch. 18 - Prob. 3ICACh. 18 - Create a flowchart that represents the following...Ch. 18 - Create an algorithm to classify a given altitude...Ch. 18 - Answer the following questions. a. For what...Ch. 18 - Answer the following questions. a. For what...Ch. 18 - For each task listed, write a single MAT LAB...Ch. 18 - Prob. 9ICACh. 18 - What is stored in variable A after each of the...Ch. 18 - What will be displayed by the following code in...Ch. 18 - Ask users to enter a matrix that could be any size...Ch. 18 - A menu is generated using the following code:...Ch. 18 - A menu is generated using the following code:...Ch. 18 - Write a program using if-elseif-else statements...Ch. 18 - Write a program using switch-case statements that...Ch. 18 - Prob. 17ICACh. 18 - Write a program that asks the user to enter the...Ch. 18 - Prob. 19ICACh. 18 - Assume you are required to generate the menus...Ch. 18 - Assume you are required to generate the menus...Ch. 18 - Prob. 22ICACh. 18 - Assume you are required to generate the menus...Ch. 18 - We go to a state-of-the-art amusement park. All...Ch. 18 - A phase diagram for carbon and platinum is shown....Ch. 18 - Prob. 27ICACh. 18 - Prob. 28ICACh. 18 - Prob. 29ICACh. 18 - The Apple TV is a personal video device created by...Ch. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Create an algorithm to determine whether a given...Ch. 18 - The specific gravity of gold is 19.3. Write a...Ch. 18 - An unmanned X-43A scramjet test vehicle has...Ch. 18 - A rod on the surface of Jupiter's moon Callisto...Ch. 18 - The Eco-Marathon is an annual competition...Ch. 18 - Assume a variable R contains a single number....Ch. 18 - Prob. 10RQCh. 18 - Create a program to determine whether a...Ch. 18 - Create a program to determine whether a given Mach...Ch. 18 - Humans can see electromagnetic radiation when the...Ch. 18 - For the protection of both the operator of a...Ch. 18 - Prob. 15RQCh. 18 - Prob. 17RQCh. 18 - Your function should use polyfit to determine the...Ch. 18 - Prob. 19RQCh. 18 - Prob. 20RQCh. 18 - The variable grade can have any real number value...Ch. 18 - Write a MATLAB program that will allow the student...Ch. 18 - One of the 14 NAE Grand Challenges is Engineering...Ch. 18 - Prob. 25RQ
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