Thinking Like an Engineer: An Active Approach, Student Value Edition Plus MyLab Engineering with Pearson eText - Access Card Package (4th Edition)
4th Edition
ISBN: 9780134701264
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 11, Problem 8ICA
The decay of a radioactive isotope can be modeled using the following equation, where C0 is the initial amount of the element at time zero and k is the half-life of the isotope. Create a graph of the decay of isotope A [k = 1.48 hours]. Allow time to vary on the abscissa from 0 to 5 hours with an initial concentration of 10 grams of isotope A.
C=C0e-t/k
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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]
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The following table lists molecular weight
data for a polypropylene material. Compute
the number-average molecular weight,
Molecular Weight
Range (g/mol)//// xi////// wi
8,000–16,000//// 0.05/// 0.02
16,000–24,000 ///0.16// 0.10
24,000–32,000 ///0.24// 0.20
32,000–40,000 ///0.28// 0.30
40,000–48,000 ///0.20// 0.27
48,000–56,000 ///0.07// 0.11
Round your answer to 0 decimal places.
The concentration of salt ? g/L in homemade soap is given as a function of time as follows: ??/dt = (0.37? − 0.03)? At the initial time, ? = 0 minute, the salt concentration is 20 g/L. Choose a step size in a range of 1 < h ≤ 1.5 minutes for the interval from 0 to 8h minutes and apply THREE (3) numerical methods to compute the salt concentration. Select the best numerical method to estimate the salt concentration and justify your answer.
method 1: ruler's method
Chapter 11 Solutions
Thinking Like an Engineer: An Active Approach, Student Value Edition Plus MyLab Engineering with Pearson eText - Access Card Package (4th Edition)
Ch. 11.2 - In the following experimental data plot, identify...Ch. 11.2 - In the following experimental data plot, identify...Ch. 11.2 - In the following theoretical data plot, identify...Ch. 11.2 - In the following theoretical data plot, identify...Ch. 11.4 - Use the graph to answer the following questions....Ch. 11.5 - Use the graph to answer the following questions....Ch. 11.6 - We assume that the current through two...Ch. 11.6 - You are working for a tire manufacturer, producing...Ch. 11.6 - You want to install a solar panel system on your...Ch. 11 - Joules first law relates the heat generated to...
Ch. 11 - Data for a wind turbine is shown below. Use the...Ch. 11 - There is a large push in the United States to...Ch. 11 - Your team has designed three tennis ball...Ch. 11 - Plot the following pairs of functions on a single...Ch. 11 - Plot the following pairs of functions on a single...Ch. 11 - You need to create a graph showing the...Ch. 11 - The decay of a radioactive isotope can be modeled...Ch. 11 - In researching alternate energies, you find that...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - Use the following graph to determine which...Ch. 11 - The following graph shows the power delivered to a...Ch. 11 - The music industry in the United States has had a...Ch. 11 - You are working for a chemical manufacturer,...Ch. 11 - Use the accompanying graph to answer the following...Ch. 11 - A company designs submersible robots with a new...Ch. 11 - Your company is manufacturing a complex part from...Ch. 11 - For questions 1 through 10, your instructor will...Ch. 11 - 2. Due to increased demand, an industrial engineer...Ch. 11 - 3. An engineer is conducting tests of two...Ch. 11 - 4. Several reactions are carried out in a closed...Ch. 11 - 5. The following experimental data are collected...Ch. 11 - 6. If an object is heated, the temperature of the...Ch. 11 - 7. Eutrophication is the result of excessive...Ch. 11 - 8. In the 1950s, a team at Los Alamos National...Ch. 11 - Prob. 9RQCh. 11 - 10. One of the 22 named, derived units in the...Ch. 11 - Shown are graphs of the altitude in meters, and...Ch. 11 - Answer the following questions using the graph....Ch. 11 - Answer the following questions using the graph....Ch. 11 - In a simple electric circuit, the current (I) must...Ch. 11 - In a hard drive design, the faster the disk spins,...Ch. 11 - We have decided to become entrepreneurs by raising...Ch. 11 - As an engineer, suppose you are directed to design...Ch. 11 - We have obtained a contract to construct metal...Ch. 11 - Your company has developed a new high-mileage...Ch. 11 - One of the 14 Grand Challenges for Engineering as...Ch. 11 - You are an engineer for a plastics manufacturing...Ch. 11 - When a wine generator is installed there is a...
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