Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
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Textbook Question
Chapter 6, Problem 9QQ
Choose the best answer to each of the following. Explain your reasoning.
Did a large terrestrial planet ever form in the region of the asteroid belt? (a) No, because there was never enough mass there. (b) No, because Jupiter prevented one form accreting. (c) Yes, but it was shattered by a giant impact.
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Students have asked these similar questions
Assume that there are a million asteroids 1 kilometer across or larger in the
asteroid belt. For both questions, assume that all the asteroids are perfectly
spherical. I
a. If a million asteroids 1-kilometer across were all combined into one
spherical object, how big would it be across?
b. How many 1-kilometer diameter asteroids would it take to make an object
as large as the Earth?
Conclusion(s) and evidence from investigation:
1. What is the relationship between mass and gravity?
2. How is mass and gravity relevant to the formation of the solar system? (think about the sun)
3. Describe the shape of the solar system.
4. Describe the composition (what it is made of) of the solar system.
5. Describe the revolution (orbit) of the solar system.
6. Identify an anomaly (doesn't match the rest) in the data and propose an explanation for it.
7. What were some patterns you found in the columns? List at least 2.
8. Which is the best evidence that the solar system was created from accretion?
Explain why. (There may be more than 1!)
Impact Energy. Consider a comet about 2 kilometers across with a mass of 4 × 1012 kg. Assume that it crashes into Earth at a speed of 30,000 meters per second (about 67,000 miles per hour).
a. What is the total energy of the impact, in joules? (Hint: The kinetic energy formula tells us that the impact energy in joules will be 1 × m × v2, where 2 m is the comet’s mass in kilograms and v is its speed in meters per second.)
b. A 1-megaton nuclear explosion releases about 4 × 1015 joules of energy. How many such nuclear bombs would it take to release as much energy as the comet impact?
c. Based on your answers, comment on the degree of devastation the comet might cause.
Chapter 6 Solutions
Cosmic Perspective Fundamentals
Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Choose the best answer to each of the following....
Ch. 6 - Choose the best answer to each of the following....Ch. 6 - Prob. 12QQCh. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...Ch. 6 - Explain all answers clearly, with complete...
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