Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 7, Problem 20E
What was the solar nebula like? Why did the Sun form at its center?
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The Solar nebula was "mostly"
b. hydrogen compounds: ammonia, methane and water
c. heavier elements
d. rocks and minerals
e. hydrogen and helium elements
According to the nebular theory, which planet is most likely to be gaseous rather than rocky?
Which 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 planets
Chapter 7 Solutions
Astronomy
Ch. 7 - Venus rotates backward and Uranus and Pluto spin...Ch. 7 - What is the difference between a differentiated...Ch. 7 - What does a planet need in order to retain an...Ch. 7 - Which type of planets have the most moons? Where...Ch. 7 - What is the difference between a meteor and a...Ch. 7 - Explain our ideas about why the terrestrial...Ch. 7 - Do all planetary systems look the same as our own?Ch. 7 - What is comparative planetology and why is it...Ch. 7 - What changed in our understanding of the Moon and...Ch. 7 - If Earth was to be hit by an extraterrestrial...
Ch. 7 - List some reasons that the study of the planets...Ch. 7 - Imagine you are a travel agent in the next...Ch. 7 - What characteristics do the worlds in our solar...Ch. 7 - How do terrestrial and giant planets differ? List...Ch. 7 - Why are there so many craters on the Moon and so...Ch. 7 - How do asteroids and comets differ?Ch. 7 - How and why is Earth’s Moon different from the...Ch. 7 - Where would you look for some “original”...Ch. 7 - Describe how we use radioactive elements and their...Ch. 7 - What was the solar nebula like? Why did the Sun...Ch. 7 - What can we learn about the formation of our solar...Ch. 7 - Earlier in this chapter, we modeled the solar...Ch. 7 - Seasons are a result of the inclination of a...Ch. 7 - Again using Appendix F, which planet(s) might you...Ch. 7 - Again using Appendix F, which planets might you...Ch. 7 - Using some of the astronomical resources in your...Ch. 7 - Explain why the planet Venus is differentiated,...Ch. 7 - Would you expect as many impact craters per unit...Ch. 7 - Using Appendix G, complete the following table...Ch. 7 - Calculate the density of Jupiter. Show your work....Ch. 7 - Calculate the density of Saturn. Show your work....Ch. 7 - What is the density of Jupiter’s moon Europa (see...Ch. 7 - Look at Appendix F and Appendix G and indicate the...Ch. 7 - Barnard’s Star, the second closest star to us, is...Ch. 7 - A radioactive nucleus has a half-life of 5108...
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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 solar nebula, and outline the sequence of events within the nebula that gave rise to the planetesimals.arrow_forwardWhat happens if a planet has differentiated? Would you expect differentiation to be common among the planets? Why or why not?arrow_forwardDo all planetary systems look the same as our own?arrow_forward
- How does the solar nebula theory explain the significant density difference between the Terrestrial and Jovian planets?arrow_forwardWhat characteristics do the worlds in our solar system have in common that lead astronomers to believe that they all formed from the same “mother cloud” (solar nebula)?arrow_forwardAs the solar nebula cooled, which compounds were the first to condense from a gas to a solid?arrow_forward
- 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 e Education TM Inc. RK12arrow_forwardWhich is these facts is NOT explained by the nebular theory? There are two main types of planets: terrestrial and jovian Existance of comets and asteroids Planets orbit in the same direction and plane Number of planets of each type (4 terrestrial and 4 jovian)arrow_forwardTitle If you observed the solar system from the nearest star (distance 1.3 parsecs), what would the... Description If you observed the solar system from the nearest star (distance 1.3 parsecs), what would the maximum angular separation be between Earth and the sun? Note that 1 pc is 2.1 105 AU. (Hint: Use the small-angle formula, Chapter 3.)arrow_forward
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