The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 12, Problem 44EAP
To determine
To Describe: The reason two different reservoirs of comets.
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Students have asked these similar questions
Describe the relationship between meteor showers and comets.
Why do meteor showers occur about on the same day each year?
O e. as a moon
QUESTION 3
You observe a large, round object orbiting Uranus. How would you classify this object?
O a. as a planet
Ob. as a dwarf planet
Oc. as an asteroid
Od. as a Kuiper belt object
e. as a moon
QUESTION 4
What is one difference between asteroids and Kuipter Belt Objects (KBOS)?
O a. asteroids are composed of rock and ice, while KBOS are composed of just rock
b. asteroids orbit the Sun, while KBOS orbit Pluto
C. asteroids orbit between Mars and Jupiter, while KBO's orbit near Pluto
d. asteroids have very elliptical orbits, while KBOS have very circular orbits
e. asteroids are small and potato-shaped, while KBOS are large and round
DO000
Using the version of Kepler's laws of planetary motion.
Calculate the orbital period of an Oort cloud comet if the semimajor axis of the comet's orbit is 50,000 AU.
Chapter 12 Solutions
The Cosmic Perspective (9th Edition)
Ch. 12 - Prob. 1VSCCh. 12 - Use the following questions to check your...Ch. 12 - Use the following questions to check your...Ch. 12 - Prob. 4VSCCh. 12 - Use the following questions to check your...Ch. 12 - 1. Briefly define asteroid. comet, dwarf planet,...Ch. 12 - Briefly describe asteroid sizes, shapes, masses,...Ch. 12 - 3. Distinguish between primitive meteorites and...Ch. 12 - 4. What do meteorites and spacecraft observations...Ch. 12 - Prob. 5EAP
Ch. 12 - Prob. 6EAPCh. 12 - Prob. 7EAPCh. 12 - How do we know the Kuiper belt and Oort cloud...Ch. 12 - Prob. 9EAPCh. 12 - Prob. 10EAPCh. 12 - Prob. 11EAPCh. 12 - Briefly describe the evidence suggesting that an...Ch. 12 - Prob. 13EAPCh. 12 - Prob. 14EAPCh. 12 - Prob. 15EAPCh. 12 - Prob. 16EAPCh. 12 - Prob. 17EAPCh. 12 - Prob. 18EAPCh. 12 - Prob. 19EAPCh. 12 - Prob. 20EAPCh. 12 - Prob. 21EAPCh. 12 - Prob. 22EAPCh. 12 - Prob. 23EAPCh. 12 - Prob. 24EAPCh. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - The Role of Jupiter. Suppose that Jupiter had...Ch. 12 - Prob. 41EAPCh. 12 - Prob. 42EAPCh. 12 - Comet Tails. Describe in your own words why comets...Ch. 12 - Prob. 44EAPCh. 12 - Adding Up Asteroids. It’s estimated that there are...Ch. 12 - Impact Energies. A relatively small impact crater...Ch. 12 - The “Near Miss” of Toutatis. The 5-kilometer...Ch. 12 - Prob. 50EAPCh. 12 - Comet Temperatures. Find the “no greenhouse”...Ch. 12 - Comet Dust Accumulation. A few hundred tons of...
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- Explain how high-speed impacts form circular craters. How can this explanation account for the various characteristic features of impact craters?arrow_forwardWe have a lot of good images of the large moons of Jupiter and Saturn from the Galileo and Cassini spacecraft missions (check out NASA’s Planetary Photojournal site, at http://photojournal.jpl.nasa.gov, to see the variety). Now that the New Horizons mission has gone to Pluto, why don’t we have as many good images of all sides of Pluto and Charon?arrow_forwardWe believe that chains of comet fragments like Comet Shoemaker-Levy 9’s have collided not only with the jovian planets, but occasionally with their moons. What sort of features would you look for on the outer planet moons to find evidence of such collisions? (As an extra bonus, can you find any images of such features on a moon like Callisto? You can use an online site of planetary images, such as the Planetary Photojournal, at photojournal.jpl.nasa.gov.)arrow_forward
- Why is the composition of a comet typically dominated by volatile materials (frozen ices)? choose one of the following: a. rock and metal could not condense out of the solar nebula at extreme distances from the sun b. most of the metal in the solar system is locked up inside the terrestrial planets c. metals are not stable in the outer solar system d. elements that form ices (as opposed to rock & metals) are more abundant in our solar systemarrow_forwardAssume 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?arrow_forwardOriginally thought to be the realm of comets, over the past two decades we discovered that the Kuiper Belt region hosts also many other objects similar in size to Pluto (Figure 22). This seems to imply that there are two completely different types of objects in the region. Do you think that both types of objects formed in this region, or some of these may have migrated to this region at a later time? Briefly explain your reasoning.arrow_forward
- Explain how meteor showers are linked to comets. Why do meteor showers recur at about the same time every year?arrow_forwardHow many impacts would you expect to strike a 100m2 region in one hour during Earth’s formation, assuming that Earth grew to its present size in 10 million years from particles averaging 100 grams each? (Hint: Assume that Earth had its current radius of 6378km.) (Notes: The surface area of a sphere is 4pir2 ; 1yr=3.2x107 .) a. About 1300. b. About 13 . c. About 13,000. d. About 130arrow_forwardB. Complete the Venn Diagram using the characteristics on the next page Meteors Asteroids Comets Characteristics to include in the Venn Diagram: 1. Progress across the sky very slowly 10. Remnants of the formation of the solar system 11. Rocky composition 2. Reflect sunlight 3. Orbit the Sun in highly elliptical orbits 12. Measure a few kilometers in diameter 4. Most found în the asteroid belt 13. Most are less than a km in diameter 5. Most have slightly elliptical orbits 14. Most are less than 100 m in diameter 6. Also known as shooting stars 15. Most burn up as they enter Earth's 7. Streak across the sky very fast 16. Most are fragments of large asteroids 17. Tail always points away from the Sun 8. lcy objects 9. Meteor showers are caused by the Earth passing through the debris path of acomet Hand&cience HSarrow_forward
- 1. Suppose you have an Oort cloud comet on an orbit with pericenter distance 10,000 AU, and apocenter distance 20,000 AU. a. What are the semi-major axis and eccentricity of the orbit? b. What are the specific energy (energy per unit mass), and specific angular momentum (angular momentum per unit mass) of the comet? c. How fast is the comet moving at apocenter (relative to the Sun)?arrow_forwardThe Solar Nebula model introduces the concept of ‘frost line’. Where are asteroids and comets found with respect to this frost line? How is their location connected to their composition?arrow_forwardWhat is the frost line in the solar nebula? Explain how temperature differences led to the formation of two distinct types of planets.arrow_forward
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