# Register now to access 7 million high quality study materials (What's Course Hero?) Course Hero is the premier provider of high quality online educational resources. With millions of study documents, online tutors, digital flashcards and free courseware, Course Hero is helping students learn more efficiently and effectively. Whether you're interested in exploring new subjects or mastering key topics for your next exam, Course Hero has the tools you need to achieve your goals.

2 Pages

### astro22 hw1

Course: AST 22, Fall 2007
School: Tufts
Rating:

Word Count: 859

#### Document Preview

#1 Homework Teddy Portney Astronomy 22 September 15, 2007 I. Reading: 1. For week 1, we read the introduction to the textbook &quot;An Introduction to the Sun and Stars&quot; as well as chapters 1-3 in the online textbook at www.astronomynotes.com. The latter of these two texts was very hard to read to begin with, as it attempted to give a size and a timescale of the universe to which we can more easily...

Register Now

#### Unformatted Document Excerpt

Coursehero >> Massachusetts >> Tufts >> AST 22

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

Tufts - AST - 22
Astronomy 22, Homework 2 Teddy Portney September 24, 2007 Fall 2007 I. READING 1.) For this week we had to read chapters 2 and 3 in the Sun and Stars textbook. I found this to be a good way to learn the physics of what happens in the sun. Again, the
Tufts - AST - 22
Astronomy 22: Homework #3 Teddy Portney October 29, 20071.) (a.) The radii of the two stars in the Algol system are approximately the same. This is explained by the sharp points at the times of complete eclipse in the graph shown. (b.) The primary
Tufts - CHEM - 01
Lab Report 1: Chromatography Chemistry 1 Teddy Portney May 28, 2007 Summer 1, 20071. Purpose: The purpose of this lab was to examine how a solvent separates different ingredients in an otherwise homogeneous material.2. Experimental Methods: We pe
Tufts - CHEM - 01
Lab Report 2: Separation and Analysis of a Ternary Mixture Chemistry 1 Teddy Portney June 5, 2007 Summer 1, 20071. Purpose: The purpose of this experiment was to separate three virtually physically identical solids, using different physical and che
Tufts - CHEM - 01
Lab Report 5: Solubility and Precipitation Chemistry 1 Teddy Portney June 17, 2007 Summer 1, 20071. Purpose:2. Experimental Methods:3. Data and Observations:4. Results and calculations:5. Discussion and Conclusion:6. Questions:
Tufts - CHEM - 01
Lab Report 3: Chemical Formulas Chemistry 1 Teddy Portney June 5, 2007 Summer 1, 20071. Purpose: The purpose of this experiment was to determine the percentage composition and the empirical formula for an unknown copper chloride compound.2. Exper
Tufts - CHEM - 01
Lab Report 5: Solubility and Precipitation Chemistry 1 Teddy Portney June 17, 2007 Summer 1, 20071. Purpose: The purpose of this lab was primarily to determine the laws of solubility for ourselves, based upon our experimentation, and which cations
Tufts - CHEM - 01
Lab Report 6: Calorimetry Chemistry 1 Teddy Portney June 17, 2007 Summer 1, 20071. Purpose: The purpose of this experiment was to examine several different reactions, both physical and chemical, in which heat was exchanged from a substance in the r
Tufts - CHEM - 01
Lab Report 7: Atomic Spectra and Atomic Structure Chemistry 1 Teddy Portney June 17, 2007 Summer 1, 20071. Purpose: The purpose of this experiment was to examine the photons emitted by different excited elements. Also, we examined different methods
Tufts - CHEM - 01
Lab Report 9: Gas Laws Chemistry 1 Teddy Portney June 25, 2007 Summer 1, 20071. Purpose: The purpose of this experiment was to use the Ideal Gas Law, PV=nRT, and Avogadro's Law to calculate the molar mass of a volatile chemical.2. Experimental Me
Tufts - CHEM - 01
Lab Report 8: Standard Curves and Volumetric Glassware Chemistry 1 Teddy Portney June 25, 2007 Summer 1, 20071. Purpose: The purpose of this experiment was to practice using different glassware, as well as refresh our memory as to the production of
Tufts - ENGINEERIN - es2
En2 project 24&quot; bounds put bulb in first to see how much space you really have use LOFT to turn cross sectional pieces into a 3d object turn off everything but osnap take cross sections and hatch them use layers and viewports and freeze for that view
Tufts - ENGINEERIN - es2
April 23, 2007 Dr. Gleam, May All Your Problems Be Light, LLC. 345 Light WayDear President Gleam, In response to your request for a new illuminating product, I am submitting several files of drawings of one of my designs for a desk lamp. I am sendi
Tufts - ES - 3
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES3 - Introduction to Electrical CircuitsFall 2007 Lab Section: Thursday 8:30-10:30amExperiment 1 DC MeasurementsTeddy Portney edward.portney@ tufts.edu Su
Tufts - ES - 3
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES3 - Introduction to Electrical CircuitsFall 2007 Lab Section: Friday 2:30-4:30pmExperiment 2 Measurement of Time-Varying SignalsTeddy Portney Edward.Port
Tufts - ES - 3
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES3 - Introduction to Electrical CircuitsFall 2007 Lab Section: Friday 2:30-4:30pmExperiment 3 Thevenin Equivalent Circuits and Maximum Power TransferTeddy
Tufts - ES - 3
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES3 - Introduction to Electrical CircuitsFall 2007 Lab Section: Friday 2:30-4:30pmExperiment 4 Amplification, Impedance, and Frequency ResponseTeddy Portne
Tufts - ES - 3
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES3 - Introduction to Electrical CircuitsFall 2007 Lab Section: Friday 2:30-4:30pmExperiment 5 Interfacing Circuits to ComputersTeddy Portney Edward.Portne
Tufts - ES - 3
102Frequency Response of an Audio System tone method noise methodMeasured Sound Level (arb.)10110010-110-210110210 Test Frequency (Hz)31041020Digital Filtering of Noise unfiltered filteredFrequency Respo
Tufts - ES - 04
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES4 - Introduction to Digital CircuitsSpring 2008 Lab Section: Tuesday 3:00-6:00pmExperiment 1 Introduction to Breadboard PrototypesTeddy Portney Edward.Po
Tufts - ES - 04
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES4 - Introduction to Digital CircuitsSpring 2008 Lab Section: Tuesday 3:00-6:00pmExperiment 2 Simple Combinational Logic CircuitsTeddy Portney Edward.Port
Tufts - ES - 04
Tufts UniversitySchool of EngineeringDepartment of Electrical and Computer EngineeringES4 - Introduction to Digital CircuitsSpring 2008 Lab Section: Tuesday 3:00-6:00pmExperiment 3 2-Bit AdderTeddy Portney Edward.Portney@ tufts.edu Submitted
Tufts - AST - 22
Floating Homework Assignments Teddy Portney December 5, 2007 Astronomy 22 1.) The display that physically manifests the rotation of the earth is the pendulum, which swings on a stationary axis while the surface of the earth rotates below it, moving p
Tufts - PHY - 12
Physics Lab Report 2 Standing Waves Teddy Portney 2/12/07 Lab LK Section A I. Introduction Standing waves occur in a fixed object with some distinct length. Standing waves are essential to the way music is made. In most non-synthesized stringed instr
Tufts - PHY - 12
Physics Lab Report 1 Simple Harmonic Motion Teddy Portney 1/30/07 Lab LK Section AI. Introduction Simple harmonic motion is a type of oscillation, which is undampened and undriven. It is periodic, represented by equations for displacement, velocity
Tufts - PHY - 12
Physics Lab Report 3 The Electric Field and Electric Potential Teddy Portney 3/5/07 Lab LK Section A I. Introduction Electricity is a very useful thing in today's world. Just about everything we do involves electricity in some way. Electricity, in th
Tufts - PHY - 12
Physics Lab Report 5 The Electron Charge-To-Mass Ratio Teddy Portney 4/10/07 Lab LK Section A I. Introduction After J.J. Thomson, a British physicist, discovered the electron in 1897, he conducted many experiments over several years. Through these ex
Tufts - PHY - 12
Physics Lab Report 4 Electrical Circuits and Electrical Resistance Teddy Portney 3/27/07 Lab LK Section A I. Introduction Present in virtually every piece of electronics in today's world, circuits are very important to people, although few realize th
Tufts - PHY - 12
Physics Lab Report 6 High Temperature Superconductivity Teddy Portney 4/23/07 Lab LK Section A I. Introduction Superconductivity is when a material is cooled to temperatures well below the freezing point, usually on the range of 300 degrees Celsius.
University of Iowa - PSYCH - 15
I.II.The nature of attitudes a. Attitude Formation i. Attitudes come from classical conditioning, operant condition, observational learning, and heredity b. Attitude Strength i. Strong attitudes resist change because they are more stable than wea
University of Iowa - BIO - 10
Lecture 6 Reading Notes (pg. 130-138) I. Membrane structure results in selective permeability a. The permeability of the Lipid bi-layer i. Hydrophobic (non-polar) molecules, such as hydrocarbons, CO2, and Oxygen can dissolve in the lipid bi-layer ii.
University of Iowa - PSYCH - 15
Chapter 6 Reading NotesSOCIAL INFLUENCE: CONFORMITY, COMPLIANCE, AND OBEDIENCEI.Categories of social influence: Conformity, Compliance, and Obedience a. What is social influence? i. A change in overt behavior caused by real or imagined pressure
University of Iowa - PSYCH - 15
Chapter 9 Reading Notes I. The Goals of Pro-social Behavior a. Define prosocial behavior. Be prepared to provide an example. i. It is an action intended to benefit another. Putting \$20 into a kettle to impress a friend b. List 4 goals served by proso
University of Iowa - BIO - 10
Lecture 10 Reading Notes I. Genes specify proteins via transcription and translation a. Evidence from the study of metabolic defects i. Archibald Garrod suggested that genes dictate phenotypes through enzymes that catalyze specific chemical reactions
Wisconsin - HIST - 103
Greg Gallagher 25 September 2006 The Qin Dynasty: 221-206 B.C.E. 1) Rise and Fall of the Qin/ Qin Political System a) Qin Shi Huangdi i) China's First Emperor (1) Refers to himself as Huangdi (Emperor), not Wang (King) ii) Very Active Emperor iii) In
Wisconsin - HIST - 103
25 September 2006 The Qin Dynasty: 221-206 B.C.E. 1) Rise and fall of the Qin/ Qin Political System a) Qin Shi huangdi b) Centralization of Power c) Li Si and Legalism in Practice d) Burning books/burying scholars e) Conscript labor/Mutual Responsibi
Wisconsin - HIST - 103
Greg Gallagher 27 September 2006The Han Dynasty: Political System and Economics 1) The Rise of the Han-&quot;Western&quot; or &quot;Former&quot; Han (206 B.C.E -9 BCE) a) Challenges of Ruling the Expanding Empire b) Western Han Political Institutions and Personages: i
Wisconsin - HIST - 103
Greg J. Gallagher 29 September 2006 The Easter (Latter Half) Han Society and Culture 1) Confucianism and the Bureaucracy, the making of &quot;History&quot; a) Han Patronage of Confucianism-Dong Zhongshu b) &quot;Official&quot; Confucianism and the state i) The Imperial
Wisconsin - HIST - 103
Greg J. Gallagher 2 October 2006 The fall of the Han, The &quot;Period of Disunity&quot; 1) The Fall of the Han-Social Pressures Boil Over a) Millenarian Groups and Peasant Rebellions: i) The Yellow Turbans (1) Located around Shandong (2) Develop own belief sy
Wisconsin - HIST - 103
Greg J. Gallagher 4 October 2006 Northern and Southern China Continued 1) Political and Social Divisions a) North China i) Gradually settlement of nomadic herders to sedentary, agricultural people (1) Start controlling states ii) Centralized state-bu
Wisconsin - HIST - 103
Greg J. Gallagher 6 October 2006 1) Buddhism's Arrival and Spread (300-600 C.E.) a) Buddhism's potential commonalities with certain Chinese beliefs b) Buddhism in the North-Elite Popular c) Buddhism in the South-examples of apologetic dialogues d) Im
Wisconsin - HIST - 103
Greg J. Gallagher 9 October 2006 The Sui Reunification and the Early Tan Dynasty 1) Sui/Tang Chronology and some General Questions a) The Sui Dynasty (581-617) b) The Tang Dynasty (618-960) i) Advanced legal system inherited and then advanced form of
Wisconsin - HIST - 103
Greg J. Gallagher 11 October 2006 Early to Mid Tang Dynasty (618-765) (series of capable leaders) 1) Taizong Emperor (626-649) a) Li Yuan i) A general of the Wui, from the same aristocratic background as Sui leader ii) Becomes first Tang Emperor Gaoz
Wisconsin - HIST - 103
Greg J. Gallagher 13 October 2006 Late Tang/the Culture of the Tang 1) Tang Culutre a) Tang as center of the East Asian World i) Tang Capital was biggest city in the world at this point b) Cosmopolitan Capital-Chang'an c) Trade-The Silk Road and the
Wisconsin - HIST - 103
Greg J. Gallagher 16 October 2006 The Song Dynasty: 907-1276 1) Themes and Issues for the Song 2) Founding of the Song a) Big Changes from Tang Period i) Population explodes ii) Civilian over military rule iii) Exam System (1) Place in society isn't
Wisconsin - HIST - 103
Greg J. Gallagher 18 October 2006Rice is aiding the population boom o Have a long growing season o Most yield per acreage o Had a surplus of rice and grain Allowed people to supply for something and not just for themselves Developed Markets o Peop
Wisconsin - HIST - 103
Greg J. Gallagher 20 October 2006 The Southern Song and Neo-Confucianism 1) Wang Anshi (1021-1086) a) Created and managed efforts at systemic change in the bureaucracy i) A serious of policies known as &quot;The New Policies&quot; b) Support of young emperor S
Wisconsin - HIST - 103
Greg J. Gallagher 25 October 2006 The Mongol Yuan Dynasty (1215-1368) 1) Early Mongol Conquest a) Issues i) Mongols are a mobile people-how do they come to settle down and rule as Chinese Emperors b) Mongols employ non-Chinese in key positions, advis
Wisconsin - HIST - 103
Greg J. Gallagher 23 October 2006 Song/Yuan Transition 1) Zhu Xi (1130-1200) and Neo-Confucianism a) Why is this important i) Zhu Xi (1) Did serve as an official but his philosophical beliefs considered to radical (2) Like Confucius, Mencius, Zhu Xi
Wisconsin - HIST - 103
Greg J. Gallagher 30 October 2006-6 November 2006 The Ming Dynasty 1369-1644 1) Downfall of the Yuan a) If Mongols so powerful, why does the Yuan fall so quickly i) Tibetan Power/Mongol treatment of Chinese ii) Economic destruction/inflation (1) Wide
Wisconsin - HIST - 103
Greg J. Gallagher 30 October 2006-1 November 2006 The Rise of the Ming Dynasty 1369-1644 1) Downfall of the Yuan a) If Mongols so powerful, why does the Yuan fall so quickly i) Tibetan Power/Mongol treatment of Chinese ii) Economic destruction/inflat
Wisconsin - HIST - 103
Greg J. Gallagher 10 November 2006 China in the World/Ming-Qing Transition China and the World (containing barbarians) o The Great Wall Used for containment of barbarians Was a symbolic o The Willow Palisade o Foreign Relations The Tribute Systems
Wisconsin - HIST - 103
Greg J. Gallagher 13 November 2006 The Manchus and the Founding of the Qing The Rise of the Manchus o Nurhaci: 1559-1626 Manchu Banners-Military and Social Organization Unique to Manchus Groups of people set up that enjoy a privileged status; they a
Wisconsin - HIST - 103
Greg J. Gallagher 15 November 2006 The High Qing: 1661-1800 The Nature of Imperial Rule o That is do we as Manchu's rule by difference or by sameness-there isn't a clear cut answer here-we see evidence of both strategies used by Qing Emperors The Fo
Wisconsin - HIST - 103
Greg J. Gallagher 20 November 2006 The Opium War 1839-1842 (Beg. Chapter 11) The Rise of the Opium Trade/Triangular Trade (recap) o European Nation-states in search of resources and cash o Growing tensions between Chinese and European traders The &quot;L
Wisconsin - HIST - 103
Greg J. Gallagher 27 November 2006 The Last Days of the Qing: Reforms and the birth of Chinese Nationalism 1860's-1900 Major Themes o A clash of systems Confucian world view completely challenged for the first time o China de-centered in a hostile w
Wisconsin - HIST - 103
Greg J. Gallagher 29 November 2006 1911 Revolution and the New Culture Movement 1911-1926 Boxer Uprising (1900-1901) o o o o Popular response to foreign imperialism Attacks on Missionaries Grow to full blown attacks on foreigners and those who work w
Wisconsin - HIST - 103
Greg J. Gallagher 1 December 2006 New Culture, New Nation 1915-1926 Backgroud: 21 Demands o Yuan Shikai forced to sign on May 7, 1915 o Europe, preoccupied with World War 1 so Japan capitalizes on this and steps up their efforts to control China o Ca
Wisconsin - HIST - 103
Greg J. Gallagher 4 December 2006 War and Revolution: The Nanjing Decade 1928-1937, the War of Resistance 19371945 Clash of Revolutionary Goals o For the Nationalists The revolution was political Defeat warlords, build a new state o For the Communi
Wisconsin - GEOG - 101
22 January 2008 Human Geography is the study of the spatial organization of human activity and of people's relationships with their environments Geographers are not interested in simply describing spatial patterns but also explaining the causes of t
Wisconsin - HIST - 103
Greg J. Gallagher 6 December 2006 From Civil War to the Dilemmas of Victory 1945-1960 War with Japan Strengthens Chinese Communists Hurts Nationalists o Politically Weakened the Nationalists vs. Ideologically honed Communists o State expansion/econo