Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 14, Problem 54Q
To determine
The reason for a constant distance between Pluto and Charon, unlike the distance between Earth-Moon and Neptune-Triton, whose distance is increasing or decreasing.
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The ratio of charon to pluto's roche limit? or
How close is Charon to Pluto's Roche limit?
please solve accurate and exact
There is one part to this question. I need to know the km/s. Thank you!
Tutorial
Based on the orbital properties of Uranus, how far across the sky in arc seconds does it travel in one Earth
day? The average orbital radius is 2.88 x 109 km and the period is 84.0 years. (Assume Uranus and the Earth
are at the closest point to one another in their orbits.)
How many full Moons does this distance cover if the Moon has an angular diameter of 0.5 degrees?
Part 1 of 4
We first need to determine how fast the planet is moving across the sky. If we know the period and the
distance between the Sun and the planet we can calculate the velocity using:
2ar
which will tell us how many kilometers the planet travels in a day if we convert the period into days.
days
= (P
years'
|days/year
Pdays
days
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Chapter 14 Solutions
Universe
Ch. 14 - Prob. 1CCCh. 14 - Prob. 2CCCh. 14 - Prob. 3CCCh. 14 - Prob. 4CCCh. 14 - Prob. 5CCCh. 14 - Prob. 6CCCh. 14 - Prob. 7CCCh. 14 - Prob. 8CCCh. 14 - Prob. 9CCCh. 14 - Prob. 10CC
Ch. 14 - Prob. 11CCCh. 14 - Prob. 1QCh. 14 - Prob. 2QCh. 14 - Prob. 3QCh. 14 - Prob. 4QCh. 14 - Prob. 5QCh. 14 - Prob. 6QCh. 14 - Prob. 7QCh. 14 - Prob. 8QCh. 14 - Prob. 9QCh. 14 - Prob. 10QCh. 14 - Prob. 11QCh. 14 - Prob. 12QCh. 14 - Prob. 13QCh. 14 - Prob. 14QCh. 14 - Prob. 15QCh. 14 - Prob. 16QCh. 14 - Prob. 17QCh. 14 - Prob. 18QCh. 14 - Prob. 19QCh. 14 - Prob. 20QCh. 14 - Prob. 21QCh. 14 - Prob. 22QCh. 14 - Prob. 23QCh. 14 - Prob. 24QCh. 14 - Prob. 25QCh. 14 - Prob. 26QCh. 14 - Prob. 27QCh. 14 - Prob. 28QCh. 14 - Prob. 29QCh. 14 - Prob. 30QCh. 14 - Prob. 31QCh. 14 - Prob. 32QCh. 14 - Prob. 34QCh. 14 - Prob. 35QCh. 14 - Prob. 36QCh. 14 - Prob. 37QCh. 14 - Prob. 38QCh. 14 - Prob. 39QCh. 14 - Prob. 40QCh. 14 - Prob. 41QCh. 14 - Prob. 42QCh. 14 - Prob. 43QCh. 14 - Prob. 44QCh. 14 - Prob. 45QCh. 14 - Prob. 46QCh. 14 - Prob. 48QCh. 14 - Prob. 49QCh. 14 - Prob. 50QCh. 14 - Prob. 51QCh. 14 - Prob. 52QCh. 14 - Prob. 53QCh. 14 - Prob. 54QCh. 14 - Prob. 55QCh. 14 - Prob. 56QCh. 14 - Prob. 57QCh. 14 - Prob. 58QCh. 14 - Prob. 59Q
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- Compare the interior cutaway sketches of the four Jovian planets in their Celestial Profiles. What interior layer(s) is (are) shown in Jupiter and Saturn but not in Uranus and Neptune, and vice versa?arrow_forwardWhat is the maximum angular diameter of Uranus as seen from Earth? Of Neptune? (Hint: Use the small-angle formula, Eq. 3-1.) (Note: Necessary data are given in their Celestial Profiles.)arrow_forwardCalculate the radius of Jupiters Roche limit for a satellite with density equal to the planet. Which of Jupiters moons is closest to the Roche limit? What might that tell you about the relationship between that moon and Jupiters ring? (Note: Necessary data are given in Celestial Profile: Jupiter and Appendix Table A-11.)arrow_forward
- What should the interior composition of Titan be if its density is 1.9 g/cm3? How do you know?arrow_forwardCalculate the mass of Callisto using a value for its density of 1.8 g/cm3. Convert your answer to units of kg, and compare to the mass of Ganymede given in Problem 5. (Notes: Density is mass divided by volume, and the volume of a sphere is 43r3. Necessary data are given in Appendix Table A-11.) 4. What is the escape velocity from the surface of Ganymede? Ganymedes mass is 1.5 1023 kg and its radius is 2.6 103 km. (Hint: Use the formula for escape velocity, Eq. 5-1b. The formula requires input quantities in kg and m.)arrow_forwardHow was Pluto discovered? Why did it take so long to find it?arrow_forward
- Describe the location of the equinoxes and solstices in the Uranian sky. What are the seasons like on Uranus?arrow_forwardIf Uranus and Neptune had no satellites at all, would you expect them to have rings? Why or why not?arrow_forwardWhy do we say that Neptune was the first planet to be discovered through the use of mathematics?arrow_forward
- Saturns rings are primordial, meaning that they originated when the planet formed. True or false? How do you know?arrow_forwardCalculate 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 Sl units. Answer: Choose...arrow_forwardIn Neptune's rings, each ring particle collides with another particle on average around every 8.7 hours. If a ring particle was to survive for the age of the solar system, which is 4.6 x109 years, how many collisions would it undergo? Assume there are 365.25 days in a yeararrow_forward
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