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EBK COSMIC PERSPECTIVE, THE
8th Edition
ISBN: 8220101465108
Author: Voit
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 54EAP
Re sure to show all calculations clearly and state your final answers in complete sentences.
- Disappearing Moon. Io loses about a ton (1000 kilograms) of sulfur dioxide per second to Jupiter’s magnetosphere, a. At this rate, what fraction of its mass would lo lose in 4.5 billion years? b. Suppose sulfur dioxide currently makes up 1% of lo's mass. When will lo run out of this gas at the current loss rate?
- Ring Particle Collisions. Each ring particle in the densest part of Saturn's ringB collides with another about every 5 hours. If a ring particle survived for the age of the solar system, how many collisions would it undergo?
- Prometheus and Pandora. These two moons orbit Saturn at 139,350 and 141,700 kilometers, respectively. a. Using Newton's version of Kepler’s third law, find their two orbital periods. Find the percent difference in their distances from Saturn and in their orbital periods, b. Consider the two in a race around Saturn: In one Prometheus orbit, how far behind is Pandora (in units of time)? In how many Prometheus orbits will Pandora have fallen behind by one of its own orbital periods? Convert this number of periods back into units of time. This is how often the satellites pass by each other.
- Orbital Resonances. Using the data in Appendix E, identify the orbital resonance relationship between Titan and Hyperion. (Hint: If the orbital period of one were 1.5 times the orbital period of the other, we would say that they were in a 3:2 resonance.) Which medium-size moon is in a 2:1 resonance with Enceladus?
- Titanic Titan. What is the ratio of Titan’s mass to that of the other satellites of Saturn whose masses are listed in Appendix E? Calculate the strength of gravity on Titan compared to that on Mimas. Comment on how this affects the possibility of an atmosphere on each.
- Titan's Evolving Atmosphere. Titan's exosphere lies nearly 1400 kilometers above its surface. What is the escape velocity from this altitude? What is the thermal speed of a hydrogen atom at the exospheric temperature of about 200 K? Use these answers (and the method of Mathematical Insight 10.2) to comment on whether thermal escape of hydrogen is likely to be important for Titan.
- Saturn's Thin Rings. Saturn’s ring system is more than 270,000 kilometers wide and only a few tens of meters thick; let’s assume 50 meters thick for this problem. Assuming the rings could be shrunk down so that their diameter was the width of a dollar bill (6.6 cm), how thick would the rings be? Compare your answer to the actual thickness of a dollar bill (0.01 cm).
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Students have asked these similar questions
Kepler-444 is one of many stars with terrestrial planets that is over 10 billion
a) What do you think the spectral type of Kepler-444 might be?
b) How do stars of this spectral type end their lives?
c) If evolution followed a similar course on a habitable pranet around a star similar to
Kepler-444, it would be 5 billion years more advanced than we are. Let’s try to project
our future and see what happens. In particular, suppose our civilization gets motivated
enough to colonize another planet. Kepler indicates that most stars have potentially
habitable (and colonizable) planets, so roughly how far away is the typical “nearest"
planet?
d) The New Horizons probe on its way to Pluto took 9 years to travel 30 AU. If we could
send colony ships with the same average speed, roughly how long would it take to reach
the typical nearest planet?
уears
old.
Why are we unlikely to find Earth-like planets around halo stars in the Galaxy?
A. Halo stars formed in a different way from disk stars.
B. Planets around stars are known to be extremely rare.
C. Halo stars formed in an environment where there were few heavy elements to create rocky planets.
D. Halo stars do not have enough mass to hold onto planets.
Is the answer C? Since halo stars are formed early when the galaxy consisted of mainly hydrogen and helium, there are no heavier elements available to create Earth-like planets so just halo stars are formed?
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Question 7
What type of mission collects information about multiple planets?
Sample returns.
Rovers.
Flybys.
Atmospheric probes.
Question 8
Why are neutrinos so difficult to detect?
There are very few of them, so collecting enough to study takes a long time.
They are theoretical and may not exist.
They move so fast they pass right through the telescope.
They don't interact strongly with matter, so they will not cause a reaction on a CCD imager.
Chapter 11 Solutions
EBK COSMIC PERSPECTIVE, THE
Ch. 11 - Prob. 1VSCCh. 11 - Prob. 2VSCCh. 11 - Prob. 3VSCCh. 11 - Prob. 4VSCCh. 11 - Prob. 1EAPCh. 11 - Prob. 2EAPCh. 11 - Prob. 3EAPCh. 11 - Prob. 4EAPCh. 11 - Prob. 5EAPCh. 11 - How do clouds contribute to Jupiter's colors? Why...
Ch. 11 - Prob. 7EAPCh. 11 - Prob. 8EAPCh. 11 - Prob. 9EAPCh. 11 - Prob. 10EAPCh. 11 - Prob. 11EAPCh. 11 - Summarize the evidence for and some of the...Ch. 11 - Prob. 13EAPCh. 11 - Prob. 14EAPCh. 11 - Prob. 15EAPCh. 11 - Prob. 16EAPCh. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Prob. 24EAPCh. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Suppose someone claimed la make the discoivries...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Choose the best answer to each of the following-...Ch. 11 - Prob. 37EAPCh. 11 - Prob. 38EAPCh. 11 - 39. Unanswered Questions. Choose one unanswered...Ch. 11 - Comparing Jovian Moons. Roles: Scnbe (collects...Ch. 11 - Prob. 41EAPCh. 11 - Prob. 42EAPCh. 11 - Prob. 43EAPCh. 11 - Prob. 44EAPCh. 11 - Prob. 45EAPCh. 11 - Prob. 46EAPCh. 11 - Prob. 47EAPCh. 11 - Prob. 48EAPCh. 11 - Prob. 49EAPCh. 11 - Re sure to show all calculations clearly and state...Ch. 11 - Re sure to show all calculations clearly and state...Ch. 11 - Prob. 52EAPCh. 11 - Prob. 53EAPCh. 11 - Re sure to show all calculations clearly and state...Ch. 11 - Prob. 55EAPCh. 11 - Prob. 56EAPCh. 11 - Pick a Moon. Suppose you could choose any one moon...Ch. 11 - Prob. 58EAPCh. 11 - Prob. 59EAP
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