Homeworks 9
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Homework 9 due on 11/09/2009 is the attempted solution to our 9th assignment in the course Introduction to Astrophysics. This assignment can be turned in on Monday 10/05/09 but will still be accepted the next day at office hourse (1:25 PM 614 Keen). Solutions were created by Group 1 (RyanT, KimW, SaraC, ZackM, and TiaraD) to be completed by Friday 11/13/09.
This assignment covers Chapters _ in the book, Lectures _. The topics in this assignment deal the makeup of the solar system.
Homework 9 due on 11/16/09
Problem 1
What are the compositions of meteorites? How do we know that most meteorites used to be part of larger bodies?
Problem 2
Name all the different kinds of objects found in the solar system. Give three distinguishing characteristics of each.
Problem 3
Make a table comparing the atmospheres of the Earth, Venus, and Mars. List the two most important gasses, the typical temperatures, and typical pressures in terms of the Earth’s atmospheric pressure. Describe briefly the formation of the atmosphere of each of them (use the atmospheric escape parameters for various components).
Problem 4
Name Jupiter’s four Galilean moons in order from the closest to the most distant from Jupiter. Give a distinctive characteristic of each moon. Why does the closest moon have such strong tectonic activity? Estimate the tidal force on each of them.
Problem 5
Assume that the initial atmosphere of Mars would consist of H/He. Calculate the escape parameter for a H/He atmosphere for Mars. Estimate the particle density in a primordial upper atmosphere assuming a temperature of 1000K. Assume that the particle density of H/He is the same as todays Mars atmosphere. How long would it take for a H/He atmosphere to evaporate?