The Modified Mastering Astronomy with Pearson eText -- Standalone Access Card -- for Essential Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134602080
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 8, Problem 17EAP
A planet orbiting another star is made primarily of hydrogen and helium and has approximately the same mass as Jupiter but the same size as Neptune.
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Neptune has a mass of 1.0 × 1026 kg and is 4.5 × 10⁹ km from the Sun with an orbital period of 177.5
years. Planetesimals in the outer primordial solar system 4.5 billion years ago coalesced into Neptune over
hundreds of millions of years. If the primordial disk that evolved into our present day solar system had a
radius of 10¹1 km and if the matter that made up these planetesimals that later became Neptune was
spread out evenly on the edges of it, what was the orbital period of the outer edges of the primordial disk?
Express your answer rounded to the nearest year, and be sure not to do any rounding before expressing
your final answer.
P =
years
The escape speed from a planet X is 165 m/s. Calculate the density of the planet if the
diameter of the planet is 225 km
(a) 3.85x103 kg/m
(b) 1.54x10 kg/m3
(c) 2.29x103 kg/m
(d) 4.33x10 kg/m3
Neptune has a mass of 1.0 × 1026 kg and is 4.5 × 109 km from the Sun with an orbital period of 165 years. Planetesimals in the outer primordial solar system 4.5 billion years ago coalesced into Neptune over hundreds of millions of years. If the primordial disk that evolved into our present day solar system had a radius of 1011 km and if the matter that made up these planetesimals that later became Neptune was spread out evenly on the edges of it, what was the orbital period of the outer edges of the primordial disk?
Chapter 8 Solutions
The Modified Mastering Astronomy with Pearson eText -- Standalone Access Card -- for Essential Cosmic Perspective (8th Edition)
Ch. 8 - Prob. 1VSCCh. 8 - Prob. 2VSCCh. 8 - Prob. 3VSCCh. 8 - Prob. 4VSCCh. 8 - Prob. 1EAPCh. 8 - Prob. 2EAPCh. 8 - Prob. 3EAPCh. 8 - Prob. 4EAPCh. 8 - Prob. 5EAPCh. 8 - Prob. 6EAP
Ch. 8 - Prob. 7EAPCh. 8 - Describe key features of Jupiter's four Galilean...Ch. 8 - Prob. 9EAPCh. 8 - Why do we think Triton is a captu red moon? How...Ch. 8 - Briefly explain why icy moons can have active...Ch. 8 - What ar e planetary rings made of, and how do they...Ch. 8 - Prob. 13EAPCh. 8 - Saturn’s core is pockmarked with impact craters...Ch. 8 - Neptune's deep bllle color is not due to methane,...Ch. 8 - A jovian planet in another star system has a moon...Ch. 8 - A planet orbiting another star is made primarily...Ch. 8 - A previously unknown moon orbits Jupiter outside...Ch. 8 - Prob. 19EAPCh. 8 - An icy, medium-size moon orbits a jovian planet in...Ch. 8 - A jovian planet is discovered in a star system...Ch. 8 - Future observations discover rainfall of liquid...Ch. 8 - During a future mission to Uranus, scient ists...Ch. 8 - Which lists the jovian planets in order of...Ch. 8 - Why does Neptune appear blue and Jupiter red? (a)...Ch. 8 - Prob. 26EAPCh. 8 - Prob. 27EAPCh. 8 - 28. The main ingredients of most moons of the...Ch. 8 - Prob. 29EAPCh. 8 - Prob. 30EAPCh. 8 - Whid1 moon shows evidence of rainfall and erosion...Ch. 8 - Prob. 32EAPCh. 8 - Prob. 33EAPCh. 8 - 34. Europan Ocean. Scientists strong ly suspect...Ch. 8 - Breaking the Rules. As discussed in Chapter 7, the...Ch. 8 - Unanswered Question. Choose one unans wered...Ch. 8 - Comparing Jovian Moons. Roles: Scribe (collect s...Ch. 8 - The Importance of Rotation. Suppose the material...Ch. 8 - Comparing Jovian Planets. You can do comparative...Ch. 8 - Prob. 40EAPCh. 8 - Prob. 41EAPCh. 8 - Prob. 42EAPCh. 8 - Disappearing Moon. lo loses about a ton (1000...Ch. 8 - 44. Ring Particle Collisions. Each ring particle...Ch. 8 - Prometheus and Pandora. These two moons orbit...Ch. 8 - Prob. 46EAPCh. 8 - Titanic Titan. What is the ratio of Titan's mass...Ch. 8 - Saturn’s Thin Rings. Saturn's riing system is over...Ch. 8 - Jovian Planet Mission. We can study terrestrial...Ch. 8 - Prob. 50EAPCh. 8 - Prob. 51EAPCh. 8 - Prob. 52EAP
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