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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Textbook Question
Chapter 14.2, Problem 2CC
For the following mass data g1ven in units of kilograms determine the mean median, variance, and standard deviation.
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A. The following are the weights in pounds of 10 pieces of balikbayan luggage:
No.
3.
4
8.
9.
10
Wt.
124
125
125
123
124
127
125
126
121
120
Find the following measurements (two-decimal places):
4. Median:
1. Mean:
2. Sample standard deviation:
3. Range:
5. Mode:
1. To determine the dynamic viscosity of a liquid you take repeated measurements of the liquid density and kinematic
viscosity. These data are summarized in the following table:
Avg. measurement
Total Uncertainty
P
999 kg/m³
±0.5%
V
1.23 mm²/s
±0.01 mm²/s
kg
Ns
What is the dynamic viscosity? Give dynamic viscosity in units of; which is the same as
ms
2. Determine the absolute and relative uncertainties in the dynamic viscosity.
3. Examine your data in Data Table 2 and in Data Table 3. For the data with the smallest percentage
difference, compare the total energy at each point. Calculate the sum U₁+Ug at x₁ as ½kx-mgx₁.
Calculate that sum at x₂ as ½kx²-mgx₂. Do you expect them to agree reasonably well? Explain why
they should or should not be the same.
4. Consider the same data as used in Question 3. Calculate the value of x halfway between x₁ and x₂.
Calculate U₁+Ug=½kx² − mgx_for_that point. Do you expect them to agree with the energy
calculated in Question 3? If they agree reasonably well, explain why they do. If they do not agree,
explain why they do not agree.
Chapter 14 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 14.1 - The following table lists the number of computer...Ch. 14.2 - For the following mass data g1ven in units of...Ch. 14.2 - For the following temperature data given in units...Ch. 14.3 - For each of the following graphs, decide if the...Ch. 14.3 - Use the scenario described in Example 14-4. For...Ch. 14.4 - Consider the weight of shipping boxes sent down an...Ch. 14.4 - Prob. 7CCCh. 14.5 - Prob. 8CCCh. 14 - For the following pressure data, recorded in units...Ch. 14 - A technician tested two temperature probes by...
Ch. 14 - One of the NAE Grand Challenges for Engineering is...Ch. 14 - You use the data from the Mauna Loa observatory in...Ch. 14 - Polyetheretherketone (PEEK)TM polymers are...Ch. 14 - A technician tested a temperature probe by...Ch. 14 - During November, the heading system in your...Ch. 14 - You are assigned to inspect metal-composite beam...Ch. 14 - Use the scenario described in the preceding...Ch. 14 - You test several temperature probes by inserting...Ch. 14 - Use the scenario described in the previous Problem...Ch. 14 - Prob. 14ICACh. 14 - The following data were collected from a...Ch. 14 - The following data were collected from a...Ch. 14 - The following table lists the number of resin...
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