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 13, Problem 9RQ
As part of an electronic music synthesizer you need to build a gizmo to convert a linear voltage to an exponentially related current. Your build three prototype circuits and make several measurements of voltage and current in each. The collected data are given in the following table.
- a. Show the resulting data and trendline, with equation and R2 value, on the appropriate graph type (xy scatter, semilog, or log–log) to make the data appear linear.
- b. Which of the three circuits comes the closest to doubling the current for an increase of 1 volt? Note that this doubling is independent of the actual values of voltage, Example. If the current was 0.3 ma at 2.7 volts, it should be 0.6 mA at 3.7 volts, 1.2 mA at 4.7 volts, 2.4 mA at 5.7 volts, etc.
- c. Calculated the value that should appear in the exponent if the current is to double with each increase of 1 volt. Note that you should perform this calculation without referring to the data, the plots, or the trendline equations. This is a purely theoretical calculation.
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Hello I’m trying to make the graph that you see in the picture, I’m trying the exact copy of that graph using this code but I’m having a hard time doing that. Could you change the code so that it looks like the graph that you see on the picture using MATLAB, please send the code when you are finished.
% Sample data for Diesel and Petrol cars
carPosition = linspace(1, 60, 50); % Assumed positions of cars
% Fix the random seed for reproducibility
rng(45);
% Assumed positions of cars
CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel
CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol
% Fit polynomial curves
pDiesel = polyfit(carPosition, CO2Diesel, 3);
pPetrol = polyfit(carPosition, CO2Petrol, 3);
% Generate points for best fit lines
fitDiesel = polyval(pDiesel, carPosition);
fitPetrol = polyval(pPetrol, carPosition);
% Plotting the data
figure; hold on;
scatter(carPosition, CO2Diesel, 'o', 'MarkerEdgeColor', [1 0.5…
As the potential across the resistor increased, the current through the resistor increased. If the change in current is proportional to the voltage, the data should be in a straight line and it should go through zero. In these two examples how close is the y-intercept to zero? Is there a proportional relationship between voltage and current? If so, write the equation for each run in the form potential = constant x current. (Use a numerical value for the constant.)
I’m making the graph that you see in the picture but the code that I’m using makes the line with to many curves. Could you make the lines look like the one that you see on the graph. Don’t change the color just make it with a little bit less curves like you see in the picture.
Use this code on MATLAB and fix it.
% Sample data for Diesel and Petrol cars
carPosition = linspace(1, 60, 50); % Assumed positions of cars
% Fix the random seed for reproducibility
rng(50);
% Assumed CO2 emissions for Diesel and Petrol
CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel
CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol
% Fit polynomial curves
pDiesel = polyfit(carPosition, CO2Diesel, 3);
pPetrol = polyfit(carPosition, CO2Petrol, 3);
% Generate points for best fit lines
fitDiesel = polyval(pDiesel, carPosition);
fitPetrol = polyval(pPetrol, carPosition);
% Combined best fit
combinedFit = (fitDiesel + fitPetrol) / 2;…
Chapter 13 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 13.2 - An unknown amount of oxygen, kept in 8 piston-type...Ch. 13.2 - The data shown graphically in the figure describe...Ch. 13.5 - Prob. 3CCCh. 13.5 - Prob. 4CCCh. 13 - Capillary action draws liquid up a narrow tube...Ch. 13 - Several reactions are carried out in a closed...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - In a turbine a device used for mixing the power...Ch. 13 - Being quite interested in obsolete electronics,...Ch. 13 - Referring to the previous ICA 13-5, Angus is also...
Ch. 13 - Prob. 7ICACh. 13 - The following instructions apply to ICA 13-7 to...Ch. 13 - The following instructions apply to ICA 13-7 to...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - The following instructions will apply to ICA 13-10...Ch. 13 - Prob. 21ICACh. 13 - As a reminder, the Reynolds number is discussed in...Ch. 13 - As a reminder, the Reynolds number is discussed in...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - An environmental engineer has obtained a bacteria...Ch. 13 - A growing field of inquiry that poses both great...Ch. 13 - If an object is heated, the temperature of the...Ch. 13 - The Volcanic Explosivity Index (VEI) is based...Ch. 13 - You are an engineer for a plastics manufacturing...Ch. 13 - A Pitot tube is a device used to measure the...Ch. 13 - As part of an electronic music synthesizer you...Ch. 13 - The following data were collected during testing...Ch. 13 - The relationship of the power required by a...Ch. 13 - When a fluid flows around an object, it creates a...
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- Could you please fix my code it’s supposed to look like the graph that’s on the picture. But the lines do not cross eachother at the beginning. Could you make the lines look like the lines on the graph? Use this code in MATLAB and fix it. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Define your seed here seed = 50; rand('seed',seed); % Set the seed for reproducibility % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves with a reduced degree of 2 pDiesel = polyfit(carPosition, CO2Diesel, 2); pPetrol = polyfit(carPosition, CO2Petrol, 2); % Generate points for best fit lines fitDiesel = polyval(pDiesel, carPosition); fitPetrol = polyval(pPetrol, carPosition); % Plotting the data figure; hold on; % Plot Diesel best fit line…arrow_forwardPlease copy the graph that you see on the picture. I keep on sending this graph in but I get different graphs. Please generate the exact graph with the orange and blue dots along this the two lines the goes across the graph and overlaps each other. Make sure you use MATLAB and the no errors comes up when you run it. Please send the code with no errors or warring signs. Please make it 100 % accurate to the graph that you see in the picture along with the data.arrow_forwardThis code keeps on generating graphs with different curves. The picture that you see two different graphs comes from the same code but both of them have different curves. I need the curve to look like the picture that only has one graph. I basically need the line to have a slight curve and every time I run the code it will come up as the same graph every time. Use this code on MATLAB and fix it % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Use the 'seed' function instead of 'rng' seed = 50; % Define your seed here rand('seed',seed); % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves with a reduced degree of 2 pDiesel = polyfit(carPosition, CO2Diesel, 2); pPetrol = polyfit(carPosition, CO2Petrol, 2); % Generate points for best fit…arrow_forward
- My professor said that I need to use the numbers as shown on the picture and make the exact graph that is also shown on the picture. But I don’t know how to put this in to MATLAB. Please send the code that makes the graph that is shown in the picture. Make it 100% exactly the same.arrow_forwardUse MATLAB, please make sure you use the numbers on the picture to make the graph that is also on the pictures. Make an exact copy of that graph and make sure that it runs on MATLAB, please send the code and a screenshot of the graph to show that it works. I need help with this.arrow_forwardThere is a small space between the orange and purple line could you please connect the two lines together also can you please make the purple line shorter and then connect the purple line to the orange line, please take out the box that says “Diesel, petrol, Diesel best fit, petrol best fit”. Also when ever I run this code the graph shows up but there are still errors that comes up could you please fix them when you are running this on MATLAB. Please use this code on MATLAB and fix it. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Fix the random seed for reproducibility rng(50); % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves pDiesel = polyfit(carPosition, CO2Diesel, 3); pPetrol = polyfit(carPosition, CO2Petrol, 3); % Generate…arrow_forward
- Could you change the lines in to two lines just like it shows in the graph . Make it exactly those two lines. Keep the colors and the same. Use this code on MATLAB and fix it. % Sample data for Diesel and Petrol cars carPosition = linspace(1, 60, 50); % Assumed positions of cars % Define your seed here seed = 50; rand('seed',seed); % Set the seed for reproducibility % Assumed CO2 emissions for Diesel and Petrol CO2Diesel = 25 + 5*cos(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Diesel CO2Petrol = 20 + 5*sin(carPosition/60*2*pi) + randn(1, 50)*5; % Random data for Petrol % Fit polynomial curves with a reduced degree of 2 pDiesel = polyfit(carPosition, CO2Diesel, 2); pPetrol = polyfit(carPosition, CO2Petrol, 2); % Generate points for best fit lines fitDiesel = polyval(pDiesel, carPosition); fitPetrol = polyval(pPetrol, carPosition); % Combined best fit combinedFit = (fitDiesel + fitPetrol) / 2; % Plotting the data figure; hold on; % Define the split index and shorten…arrow_forwardMULTIPLE CHOICE -The answer is one of the options below please solve carefully and circle the correct option Please write clear .arrow_forwardAn inclined straight line in an s-t graph means: The object is not in motion. Velocity is constant. Acceleration is constant. Erratic motion takes place.arrow_forward
- What would be the analysis of the given table or graph?arrow_forwardI need help with this question. :)arrow_forwardFor the Following question Graph all 4 : [I just need all 4 graphs and please explain and make clean solution] Position vs time Velocity vs time Acceleration vs time Force vs time [For your convenience, I have solved the numerical solutions for the problem] (Please Look at the picture since it is much cleaner) Question : A 550 kilogram mass initially at rest acted upon by a force of F(t) = 50et Newtons. What are the acceleration, speed, and displacement of the mass at t = 4 second ? a =(50 e^t)/(550 ) [N/kg] v = ∫_0^t▒(50 e^t )dt/(550 )= v_0 +(50 e^t-50)/550=((e^t- 1))/11 x = ∫_0^t▒(e^t- 1)dt/(11 )= x_0 +(e^t- t - 1)/(11 ) a(4s)=(50*54.6)/550= 4.96[m/s^2 ] v(4s)=((e^4-1))/11= 4.87[m/s] x(4s)=((e^4- 4 - 1))/11= 4.51 [m]arrow_forward
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