The Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134059068
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 8, Problem 7EAP
Briefly describe the process by which terrestrial planets are thought to have formed.
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Question #4:
According to the nebular theory, which planet is most likely to be
gaseous rather than rocky?
A. Venus, because it is the warmest planet and so is more likely
to be gaseous
B. Mercury, because planets closer to the solar nebula are more
likely to be made of gas, like the nebula
C. Earth, because the atmosphere consists of nitrogen, oxygen,
and other gases, so it is a gaseous planet
D. Neptune, because as the planets get farther from the solar
nebula, their composition is more icy and gaseous
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RK12
We think the terrestrial planets formed around solid “seeds” that later grew over time through the accretion of rocks and metals.
a) Suppose the Earth grew to its present size in 1 million years through the accretion of particles averaging 100 grams each. On average, how many particles did the Earth capture per second, given that the mass of the Earth is = 5.972 × 10 ^24 kg ?
b) If you stood on Earth during its formation and watched a region covering 100 m^2, how many impacts would you expect to see in one hour. Use the impact rate you calculated in part a. You’ll need the following as well: the radius of the Earth is = 6.371 × 10 ^6 m and the surface area of the Earth is 4??^2Earth
What is the frost line in the solar nebula? Explain how temperature differences led to the formation of two distinct types of planets.
Chapter 8 Solutions
The Cosmic Perspective (8th Edition)
Ch. 8 - Prob. 1VSCCh. 8 - Prob. 2VSCCh. 8 - Prob. 3VSCCh. 8 -
Briefly describe the four major features of our...Ch. 8 - What is the nebular theory, and why is it widely...Ch. 8 - What do we mean by the solar nebula? What was it...Ch. 8 -
4. Describe the three key processes that led the...Ch. 8 - List the approximate condensation temperature and...Ch. 8 - What was the frost line? Which ingredients...Ch. 8 - Briefly describe the process by which terrestrial...
Ch. 8 - How was the formation of jovian planets similar to...Ch. 8 - What is the solar wind, and what roles did it play...Ch. 8 - How did planet formation lead to the existence of...Ch. 8 - What was the heavy bombardment, and when did it...Ch. 8 - What is the leading hypothesis for the Moon’s...Ch. 8 - Prob. 13EAPCh. 8 - How old is the solar system, and how do we know?Ch. 8 - Surprising Discoveries? Suppose we found a solar...Ch. 8 - Prob. 16EAPCh. 8 - Surprising Discoveries? Suppose we found a solar...Ch. 8 - Prob. 18EAPCh. 8 - Prob. 19EAPCh. 8 - Prob. 20EAPCh. 8 - Prob. 21EAPCh. 8 - Prob. 22EAPCh. 8 - Prob. 23EAPCh. 8 - Prob. 24EAPCh. 8 - Choose the best answer to each of the following....Ch. 8 - Choose the best answer to each of the following....Ch. 8 - Choose the best answer to each of the following....Ch. 8 - Prob. 28EAPCh. 8 - Choose the best answer to each of the following....Ch. 8 - Choose the best answer to each of the following....Ch. 8 - Prob. 31EAPCh. 8 - Choose the best answer to each of the following....Ch. 8 - Choose the best answer to each of the following....Ch. 8 - Choose the best answer to each of the following....Ch. 8 - Explaining the Past. Is it really possible for...Ch. 8 - Prob. 36EAPCh. 8 - A Cold Solar Nebula. Roles: Scribe (take notes on...Ch. 8 - Prob. 38EAPCh. 8 - Prob. 39EAPCh. 8 - Prob. 40EAPCh. 8 - Prob. 41EAPCh. 8 - Prob. 42EAPCh. 8 - Prob. 43EAPCh. 8 - Prob. 44EAPCh. 8 - Prob. 45EAPCh. 8 - Prob. 46EAPCh. 8 - Prob. 47EAPCh. 8 - Prob. 48EAPCh. 8 - Prob. 49EAPCh. 8 - Be sure to show all calculations clearly and state...Ch. 8 - Prob. 51EAPCh. 8 - Prob. 52EAPCh. 8 - Lucky to Be Here? Considering the overall process...Ch. 8 - Prob. 54EAPCh. 8 - Prob. 55EAPCh. 8 - Prob. 56EAP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Describe the four stages of Terrestrial planet development.arrow_forwardDescribe the solar nebula, and outline the sequence of events within the nebula that gave rise to the planetesimals.arrow_forwardCompare and contrast the terrestrial planets to the gas giant planets. Be sure to include differences in size, density, and any special information about any of the planets.arrow_forward
- Describe the process through which the terrestrial planets and the planets of Jupiter diverged so drastically.arrow_forward1. Which of the outer planets have compositions dominated by the "ices" ingredient? Check the correct two. 2. Which of the outer planets have compositions dominated by the "gases" ingredient? Check the correct two. 3. Most of the spaceflight missions to the outer planets have been flyby missions, but two of them were orbiters. Which of these two spacecraft orbited giant planets? Check the correct two. (Hint: An orbiter might do a flyby of one planet and then go on to orbit a different planet.) 4. Jupiter's mass is how many times larger than the Earth's? Just type a number, no words or any other extra stuff. 5. Which of the outer planets has extreme seasons, with its rotational axis being tilted so much that it is practically in the plane of its orbit?arrow_forwardWhat are two differences between the terrestrial (rocky) planets and the Gas giants?arrow_forward
- How 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_forwardWhich of the following statements is correct? a. The formation of planets stopped because the solar nebula got cooler c. The formation of planets stopped because the solar nebula ran out of planetesimals d. The formation of planets stopped because the solar nebula spinning was slowing down e. The formation of planets stopped because the young Sun's strong solar wind swept away material not yet accreted onto the planetsarrow_forwardDescribe a way that gravity influenced the formation of the solar system with the planet orbiting the sun.arrow_forward
- Describe the planet Venus. Attributes like atmosphere, rotation, etc. should be included in your description.arrow_forwardWhy don't terrestrial planets have rings like the Jovian planetsarrow_forwardActivity 2. Quest for Escape planet. Study and analyze the illustrations and determine whether the statements below are true or false. The speedometer readings in every spacecraft show the escape velocities of each Mercury nspater 10 4 turn Venus 11 2 Ur arus farth Neptune Mars rwan TRUE or FALSE 1. A spacecraft must attain a speed of 11.2 km/s to leave the Earth's surface. 2. It is easier to leave the surface of Jupiter than Earth. 3. Escape velocity is affected by the planet's mass. 4. Mars has smaller escape velocity than Venus and Earth because it is farther from the sun. 5. The escape velocity of a planet is not affected by the sun's warping of space- time.arrow_forward
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