Life in the Universe (4th Edition)
4th Edition
ISBN: 9780134089089
Author: Jeffrey O. Bennett, Seth Shostak
Publisher: PEARSON
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Chapter 9, Problem 47IF
Orbital Resonances II. Using the data in Appendix E, identify an orbital resonance that affects Enceladus. In light of the Cassini mission findings about Enceladus, how might this resonance be important?
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Let's imagine a friend of yours says "Someone ought to put a spacecraft in orbit around Europa, and have it send down a lander, too!" Why are these particularly difficult things to do, in the case of Europa?
a Europa is deep inside Jupiter's intense radiation belts, which would damage or destroy a spacecraft's electronics.
b Jupiter is moving so fast in its orbit that it's impossible to put a spacecraft in orbit around Jupiter, or around one of its moons.
c Jupiter's strong gravity makes it impossible for any spacecraft to get close enough to Europa to study it in any reasonable detail.
d Since Jupiter is the farthest planet from the Sun, it would take many decades to send a spacecraft to Europa.
Why Wait? To explore a planet, we often send first a flyby, then an orbiter, then a probe or a lander. There’s no doubt that probes and landers give the most close-up detail, so why don’t we send this type of mission first? For the planet of your choice, based just on the information in this chap- ter, give an example of why such a strategy might cause a mission to provide incomplete information about the planet or to fail outright.
Calculate the escape velocity to an orbit of 243 km height from a planet with the radius of 2000 km and the density of 3400 kg m-³. Give your answer in
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Chapter 9 Solutions
Life in the Universe (4th Edition)
Ch. 9 - Briefly explain how the larger jovian moons tend...Ch. 9 - Briefly describe the cause of the tides on Earth,...Ch. 9 - What is synchronous rotation, and why is it so...Ch. 9 - What is tidal heating? Briefly explain how it can...Ch. 9 - Describe the evidence suggesting that Europa has a...Ch. 9 - What energy sources might be available to life on...Ch. 9 - Describe the evidence for subsurface oceans on...Ch. 9 - Why was Titan chosen for such intense study by the...Ch. 9 - Based on recent data, describe the general nature...Ch. 9 - What evidence suggests that Enceladus might be...
Ch. 9 - Could Triton be habitable? Briefly discuss the...Ch. 9 - What do we mean by chemical equilibrium and...Ch. 9 - Prob. 13RQCh. 9 - Based on our understanding of the chemistry of...Ch. 9 - Io is riddled with volcanoes because of its...Ch. 9 - Europa is likely to have fishlike organisms the...Ch. 9 - While Europa, Ganymede, and Callisto are all...Ch. 9 - The fact that our Moon keeps one side always...Ch. 9 - Titan is simply too cold to have any life.Ch. 9 - Triton might have life that uses liquid ammonia,...Ch. 9 - Io doesnt have a significant atmosphere because it...Ch. 9 - Orbital resonances like those among Io, Europa,...Ch. 9 - If there is life on Enceladus, it probably gets...Ch. 9 - If our solar system is typical, other star systems...Ch. 9 - The moons of Saturn may have large amounts of...Ch. 9 - Which statement about synchronous rotation is...Ch. 9 - Io is covered in volcanoes while Europa is covered...Ch. 9 - Which of the following is not an indication of...Ch. 9 - Photosynthesis is an unlikely source of energy for...Ch. 9 - Its assumed that, even if Europa has life, the...Ch. 9 - The chances for life on Titans surface are...Ch. 9 - Where might we find liquid water on Titan? (a) in...Ch. 9 - Why were scientists so surprised to find active...Ch. 9 - Chemical disequilibrium is likely to be present in...Ch. 9 - Cost-Effective Exploration. Given its budget, NASA...Ch. 9 - Lessons for Life. Considering everything weve...Ch. 9 - Exploring Europa I. Although Europa is a promising...Ch. 9 - Exploring Europa II. One suggestion for...Ch. 9 - Europan Fish. On Earth, fish breathe oxygen that...Ch. 9 - Life on Titan. Several possibilities have been...Ch. 9 - Migrating Life. As we discussed in Chapter 6,...Ch. 9 - Orbital Resonances I. Using the data in Appendix...Ch. 9 - Orbital Resonances II. Using the data in Appendix...Ch. 9 - Tidal Force on the Moon. In Cosmic Calculations...Ch. 9 - Tidal Force on Io. Using the procedure from Cosmic...Ch. 9 - Tidal Force on Europa and Ganymede. Using the...Ch. 9 - Limited Thinking. Throughout this book, we have...Ch. 9 - Europa Orbiter. Find out the current status of...
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Kepler's Three Laws Explained; Author: PhysicsHigh;https://www.youtube.com/watch?v=kyR6EO_RMKE;License: Standard YouTube License, CC-BY