Thinking Like an Engineer
4th Edition
ISBN: 9781269910989
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: Pearson Learning Solutions
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Textbook Question
Chapter 12, Problem 17RQ
- 17. One of the NAE Grand Challenges for Engineering is Engineering the Tools of Scientific Discovery. According to the NAE website: "Grand experiments and missions of exploration always need engineering expertise to design the tools,
instruments, and systems that make it possible to acquire new knowledge about the physical and biological worlds."Solar sails are a means of interplanetary propulsion using the radiation pressure of the sun to accelerate a spacecraft. The following table shows the radiation pressure at the orbits of several planets.
| Planet | Distance from Sun (d) [AU] | Radiation Pressure (P) [µPa] |
| Mercury | 0.46 | 43.3 |
| Venus | 0.72 | 17.7 |
| Earth | 1 | 9.15 |
| Mars | 1.5 | 3.96 |
| Jupiter | 5.2 | 0.34 |
Note
The astronomical unit (AU) is the average distance from the Earth to the Sun.
- a. Plot this data and determine the power law model for radiation pressure as a function of distance from the sun.
- b. What are the units of the exponent in the trendline?
- c. What are the units of the other constant in the trendline?
- d. What is the radiation pressure at Uranus (19.2 AU from sun)?
- e. At what distance from the sun is the radiation pressure 5 µPa?
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Chapter 12 Solutions
Thinking Like an Engineer
Ch. 12.1 - Prob. 1CCCh. 12.2 - Fluid A as a dynamic viscosity of 0.5 centipoise...Ch. 12.2 - Fluid A has a dynamic viscosity of 0.5 centipoise...Ch. 12.2 - Fluid A has a dynamic viscosity of 0.5 centipoise...Ch. 12.2 - You have three springs, with stiffness 1,2 and 3...Ch. 12.2 - You have three resistors with resistance 2,2, and...Ch. 12.2 - You have four 60-nanofarad [nF] capacitors. Using...Ch. 12.2 - You have three 120 millihenry [mH] inductors. Can...Ch. 12.3 - The graph shows the ideal gas law relationship...Ch. 12.3 - The preceding graph shows the ideal gas Jaw...
Ch. 12.4 - The decay of a radioactive isotope was tracked...Ch. 12 - Prob. 1ICACh. 12 - Prob. 2ICACh. 12 - Prob. 3ICACh. 12 - Mercury has a dynamic viscosity of 1.55...Ch. 12 - Prob. 5ICACh. 12 - Prob. 6ICACh. 12 - Prob. 7ICACh. 12 - Four springs were tested, with the results shown...Ch. 12 - Four circuits were tested, with the results shown...Ch. 12 - Assume you have an unlimited number of inductors...Ch. 12 - a. The equivalent capacitance of the circuit shown...Ch. 12 - A standard guitar, whether acoustic or electric,...Ch. 12 - The vibrating frequency of a guitar string depends...Ch. 12 - Solid objects, such as your desk or a rod of...Ch. 12 - Eutrophication is a process whereby lakes,...Ch. 12 - The following graph shows the relationship between...Ch. 12 - The total quantity (mass) of a radioactive...Ch. 12 - Match the data series from the options shown on...Ch. 12 - 1. For a simple capacitor with two flat plates,...Ch. 12 - 2. When we wish to generate hydroelectric power,...Ch. 12 - 3. When rain falls over an area for a sufficiently...Ch. 12 - You are experimenting with several liquid metal...Ch. 12 - 5. The resistance of a wire (R [ohm)) is a...Ch. 12 - 6. Use the figure shown to answer the following...Ch. 12 - 7. You are given four springs, one each of 2.5, 5,...Ch. 12 - You have three springs. You conduct several tests...Ch. 12 - 9. You are given four resistors, each of 7.5, 10,...Ch. 12 - 10. You have three resistors. You conduct several...Ch. 12 - 11. Use the diagrams shown to answer the following...Ch. 12 - 12. When a buoyant cylinder of height H, such as a...Ch. 12 - 13. It is difficult to bring the Internet to some...Ch. 12 - 14. The data shown in the following graph was...Ch. 12 - 15 A standard guitar, whether acoustic or...Ch. 12 - 16. Your supervisor has assigned you the task of...Ch. 12 - 17. One of the NAE Grand Challenges for...Ch. 12 - 18. When volunteers build a Habitat for Humanity...Ch. 12 - 1. As part of an electronic music synthesizer, you...Ch. 12 - Prob. 20RQ
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