Astronomy 201 Problem Set 2 Assigned: 13 Sep 2004 Due: 27 Sep 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 3: Chapter 4: Chapter 5: Review and Discussio
Chapter 19: Star Formation
Chapter 18 Problems
2. The distance to Alpha Centauri is 1.33 pc 3.11016 m/pc = 4.11016 m. The volume of space is 4.11016 m3. Multiplying this by the mass density from the previous question gives a total mass of 7.010-8 kg. This
Problem Set 2 Solutions Astronomy 201 Assigned: 13 Sep 2004 Due: 27 Sep 2004 Chapter 3: Review and Discussion: 2, 3, 13, 15, 18 2. Define the following wave properties: period, wavelength, amplitude, frequency.
The wave period is a measurement of the amou
Problem Set 3 Solution Astronomy 202 Chapter 18: Review and Discussion: 1, 3, 9, 13, 15 1. Give a brief description of the interstellar medium.
The interstellar medium is made up of gas and dust. Gas is much more abundant yet has a density of only about 1
Problem Set 4 Solutions Astronomy 202 Assigned: 20 March 2006 Due: 03 April 2006 Chapter 20 Review and Discussion: 1, 3, 11, 16, 20 1. Why dont stars live forever? Which types of stars live the longest?
Stars burn hydrogen into helium. When the hydrogen i
Problem Set 5 Solutions Astronomy 202 Assigned: 03 April 2006 Due: 17 April 2006 Chapter 23: Review and Discussion: 1. What evidence do we have that we live in a disk galaxy? A wide band of light completely surrounds us and is known as the Milky Way. Perp
Problem Set 6 Solutions Astronomy 202 Assigned: 17 April 2006 Due: 01 May 2006 Chapter 26 Review and Discussion: 2, 3, 4, 8, 13 2. What is the cosmological principle? The cosmological principle is made up of two assumptions fundamental to cosmology. They
Problem Set 1 Solution Astronomy 202 Chapter 1: Review and Discussion: 6, 7, 10, 12, 17 6. Why does the Sun rise in the east and set in the west each day? Does the Moon also rise in the east and set in the west? Why? Do stars do the same? Why? Although th
Problem Set 2 Solutions Astronomy 202 Chapter 5: Review and Discussion: 2, 4, 6 2. List three advantages of reflecting telescopes over refracting telescopes.
The largest telescopes are reflecting telescopes, primarily because of 3 distinct disadvantages o
SCCC 115 Homework 4 - Due 11 October 2005 Prof. Christina Lacey
R&D: 6-6, 6-11 P: 1-10, 5-4, 6-7, 6-8
R&D: 6-6:
Which are the terrestrial planets/ Why are they given that name? The terrestrial planets are Mercury, Venus, Earth, and Mars. They are called t
SCCC 115 Homework 3 - Due 22 Sept. 2005 Prof. Christina Lacey
P: 2-10, 3-5, 3-6, 3-11, 3-12, 4-4 R & D: 4-4
P 2-10: The Sun moves in a roughly circular orbit around the center of the Milky Way Galaxy, at a distance of 26,000 ly. The orbital speed is rough
SCCC 115 Homework 2 - Due 18 Sept. 2003 Prof. Christina Lacey
P:2-6,3-2, 3-7 R & D:3-11
P 2-6: Halley's comet has a perihelion distance of 0.6 AU and an orbital period of 76 years. What is the aphelion distance from the Sun?
First, using the period find t
Next: About this document .
SCCC 115 Homework 1 - Due 11 Sept. 2003 Prof. Christina Lacey Question 1: Q: How many miles and m are in a light year? A: Distance traveled is: , where v= velocity and t is the time traveled. For light, =speed of light= and 1 y
Astronomy 201 Problem Set 6 Assigned: 8 November 2004 Due: 29 November 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 13: Chapter 14: Chapter 15: Review a
Astronomy 201 Problem Set 5 Assigned: 25 October 2004 Due: 8 November 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 11: Chapter 12: Review and Discussion
Astronomy 201 Problem Set 4 Assigned: 11 October 2004 Due: 25 October 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 8: Chapter 9: Chapter 10: Review and
Astronomy 201 Problem Set 3 Assigned: 27 Sep 2004 Due: 11 October 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 6: Chapter 7: Review and Discussion 1, 8,
Astronomy 201 Problem Set 1 Assigned: 30 Aug 2004 Due: 13 Sep 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 1: Review and Discussion 1, 7, 9, 10, 14 Prob
Astronomy 201 Problem Set 6 Assigned: 8 November 2004 Due: 29 November 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points.
Chapter 13:
Review and Discussion 1, 3, 9, 1
Astronomy 201 Problem Set 5 Assigned: 25 October 2004 Due: 8 November 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points.
Chapter 11:
Review and Discussion 2, 6, 8, 11
Chapter 8
Review and Discussion 4. Employ the concept of escape speed to explain why the Moon and Mercury have no significant atmospheres.
Both the Moon and Mercury have low masses and low escape velocities. Yet both objects are in the inner solar system
Astronomy 201 Problem Set 3 Solution Assigned: 27 Sep 2004 Due: 11 October 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 6: Review and Discussion 1, 8, 1
Astronomy 201 Problem Set 1 Assigned: 30 Aug 2004 Due: 13 Sep 2004 Remember: No late homework and homework counts 40% of the total grade. Each question / problem is of equal weight and equals 5 points. Chapter 1: Review and Discussion 1, 7, 9, 10, 14 Prob
Chapter 24: Normal and Active Galaxies
Chapter 23 Problems
1. 2. 3. 4. 1 A.U. at 1 pc subtends an angle of 1" (by definition of the parsec). 100 A.U. at 100 pc will subtend the same angle, 1". This is 21600 times smaller than the angular size of the Andro
Chapter 27: The Early Universe
Chapter 26 Problems
2. The distance is 1,000 Mpc. Interpolate between the values of 873 Mpc for a redshift of 0.200 and 1080 Mpc for 0.250. This will be only a rough estimate because this type of interpolation requires a lin
Chapter 21: Stellar Explosions
Chapter 20 Problems
3. Refer to More Precisely 17-2: (a) 1 A.U. = 215 solar radii. L = 2152(3000 / 5800)4, L = 3300 solar luminosities. (b) The radius is five time bigger than in (a) and so L is 25 times bigger or 82,500 sol
Chapter 5 Problems
2.
max =
.29cm 1m 106 m , so max = 527m , which is longer than the 3 to 200m 5.5K 100cm 1m
operating range. 3. The amount of light collected by a telescope depends on the area of the mirror, and the area depends on the square of the di
NS 209 What is there in the universe, beyond the Milky Way Midterm Exam 10 April 2007 - 14:40-15:30
Instructor: Emrah Kalemci Surname: Name: Student No:
Problem (54 pts) Multiple choice (56 pts) Total (110 pts):
Instructions: 28 points multiple choice que
NS 209 What is there in the universe, beyond the Milky Way Final Exam -A11 June 2007 - 16:00-18:00
Instructor: Emrah Kalemci Surname: Name: Student No:
Problems (62 pts) Short answer (10 pts) Multiple choice (48 pts) Total (120 pts):
Instructions: 32 mult