THINKING LIKE AN ENGINEER W/ACCESS
17th Edition
ISBN: 9781323522127
Author: STEPHAN
Publisher: PEARSON C
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Textbook Question
Chapter 15.2, Problem 5CC
- a. Calculate the two roots of the quadratic equation 3x2 + 2x + 1 using the quadratic formula and place them in R1 and R2. Note that MATLAB should do this calculation—do not calculate by hand and enter the resulting values.
- b. Calculate the tangent of 75 degrees and place the result in Trig2.
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The single degree of freedom (SDOF) system that you studied under free vibration in Assignment #3 - Laboratory Component has been subjected to a strong ground motion. The acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time…
The single degree of freedom (SDOF) system that you studied under free vibration in Assignment #3 - Laboratory Component has been subjected to a strong ground motion. The acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time…
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 43%.
60
Su = 66 ksi
Stress σ (ksi)
40 B
20
0
0
0
T
H
Sy = 39 ksi
Se = 36 ksi
Hot-rolled 1020 steel
F
10 20 30 40
50 60 70 80 90 100 110 120 130 140 150 160
Strain € (%)
T
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of strain is applicable to this location?
0.6
Chapter 15 Solutions
THINKING LIKE AN ENGINEER W/ACCESS
Ch. 15.1 - Which of the following are valid MATLAB variable...Ch. 15.1 - Which of the following assignment statements are...Ch. 15.1 - a. Store all workspace variables in the file...Ch. 15.2 - Write MATLAB code to complete the following...Ch. 15.2 - a. Calculate the two roots of the quadratic...Ch. 15.3 - Each problem should be done with a single MATLAB...Ch. 15.3 - Assume a row vector named vals has already been...Ch. 15.3 - a. Place the indices of all nonzero elements of...Ch. 15.3 - a. Create a column vector CV1 containing 123...Ch. 15.3 - Comprehension Check 15-1 0 a. Assume you have four...
Ch. 15.3 - a. Write a single MATLAB command that will create...Ch. 15.4 - a. Create the matrix CCM1=[180.34.11017] using a...Ch. 15.4 - Write single MATLAB statements to perform each of...Ch. 15.4 - Write single MATLAB statements to perform each of...Ch. 15.4 - Write single MATLAB statements to perform each of...Ch. 15.4 - Write single MATLAB statements to perform each of...Ch. 15.4 - For each of the following questions, write a...Ch. 15.5 - a. Create a variable named MTS containing the text...Ch. 15.6 - Assume a cell array named CA has three cells in a...Ch. 15.6 - Prob. 21CCCh. 15.7 - Create a structure array named Resistors...Ch. 15.7 - Use the data stored in MetalData to answer the...Ch. 15.7 - The structure array named Hdwr has the following...Ch. 15 - Which of the following are not valid MATLAB...Ch. 15 - Prob. 2ICACh. 15 - For the following questions, assume that the...Ch. 15 - For each calculation described below, write a...Ch. 15 - For each calculation described below, write a...Ch. 15 - For each of the vectors described below, write a...Ch. 15 - Assume the following vectors are already defined:...Ch. 15 - For each of the following sequences, write a...Ch. 15 - Modify the following statements so that they are...Ch. 15 - Assume you have three equal-length row vectors....Ch. 15 - Write the MATLAB code necessary to create the...Ch. 15 - For each of the following problems, write a single...Ch. 15 - Assume you have two equal-length row vectors IV1...Ch. 15 - Write the MATLAB code necessary to create the...Ch. 15 - Assuming t = [9 10; 11 12] and v = [2 4;6 8;10 12]...Ch. 15 - Determine solutions to the following problems a....Ch. 15 - For each of the following problems except part...Ch. 15 - Assume you have an N M matrix named Gonzo For...Ch. 15 - For each of the following tasks. write a single...Ch. 15 - Determine the contents of the variables created or...Ch. 15 - For each of the following tasks, write a single...Ch. 15 - For each of the following problems, write a single...Ch. 15 - Each of the following questions contains a...Ch. 15 - Prob. 25ICACh. 15 - Assume a cell array CA1 has already been defined....Ch. 15 - Prob. 27ICACh. 15 - You are setting up a structure array named client...Ch. 15 - You have three temperature values [C] stored in...Ch. 15 - You have N temperature values [C] stored in the...Ch. 15 - Assume four row vectors named Prod10, Prod11,...Ch. 15 - You have a 2 N matrix named GasData. The first...Ch. 15 - Assume the matrix M99 has at least two rows and at...Ch. 15 - Assume a matrix named Prod contains data on...Ch. 15 - You are studying the effects of climate change on...Ch. 15 - You are studying the properties of tiny spheres...Ch. 15 - Assume you have a four-column matrix named...Ch. 15 - One very old method of sending secret messages is...Ch. 15 - Prob. 13RQCh. 15 - Prob. 15RQCh. 15 - Refer to the specifications for Review Questions...
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- A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 40%. 60 Su = 66 ksi Stress σ (ksi) S₁ = 39 ksi 40 Se = 36 ksi Hot-rolled 1020 steel 20 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Strain € (%) 0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of area ratio is applicable to this location? 0.6arrow_forwardA tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 43%. 60 Su = 66 ksi Stress σ (ksi) 20 Sy = 39 ksi Se = 36 ksi Hot-rolled 1020 steel F 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Strain € (%) 0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Area ratio R 0.1 0.2 0.3 0.4 0.5 Area reduction A, What value of area reduction is applicable to this location? 0.6arrow_forwardTable of Measurements and Results: Reading m/s Ji- a (wh Nu h Re Nu Error% (C) (°C) 2 1 Discussion: 1-Estimate the heat transfer and experimental value of the heat transfer coefficient hex with its unit and Nusselt number Nu expl 2- Find the percentage error for the value of the experimental Nusselt number. 3-Draw the graph showing a relationship between the temperatures difference (T-T) and theoretical and experimental value of Nusselt number. 4-The forced convection heat transfer coefficient of a plate depends on which of the following: a-gravity. b-velocity of fluid. e-conductivity of fluid. d-conductivity of plate material. Experiment: Internal Forced convenction Heat trovate on now through t objectives. Study the convection heat transfer of air flow through stage Calculations. Q & (T-T) Vary Re Q. heup A (TT) (T. Te-T ASPL Nep Re 117 RITT 14 ' 14arrow_forward
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