Galaxy - Study guides, Class notes & Summaries

Gravity is an ________ force between two objects with mass, acting along the line between them. - correct answer attractive How many stars are in the Milky Way galaxy? - correct answer 200 billion Newton's first law of motion says that an object at constant velocity will remain at constant velocity unless acted upon by a - correct answer force In his General Theory of Relativity, Einstein revised our understanding of - correct answer gravity Early astronomers believed the earth was ...

SETI Correct Answer-Search for Extraterrestrial Intelligence What does ETI need? Correct Answer-1. A platform 2. Stability 3. Emergence, persistence and gradual evolution 4. Be communicative Water's special properties Correct Answer-Contracts at lower temperatures, high heat capacity, important for chemical reactions How many stars in the Milky Way could be suitable for ETI? Correct Answer-At least a few billion Habitable zone Correct Answer-area around a star that life can exist...

PAC2602 Assignment 2 (COMPLETE ANSWERS) Semester 2 2024 (215093)- DUE 16 September 2024 ; 100% TRUSTED Complete, trusted solutions and explanations. For assistance, Whats-App 0.6.7-1.7.1-1.7.3.9. Ensure your success with us . . You must prepare a project budget for a seven-day Anti-child abuse awareness campaign. The project is for the Madumetsa Advice Centre. The following stationery will be used: 38 Calculators at R89.50 each. 120 HB pencils at R12.00 each. 25 Rulers at R8.00 each 16 Cans...

Astronomy - Final Exam With Complete Solutions 100% Solved How are galaxies created? ️️One says that galaxies were born when vast clouds of gas and dust collapsed under their own gravitational pull, allowing stars to form. ... The other, which has gained strength in recent years, says the young universe contained many small "lumps" of matter, which clumped together to form galaxies. How was Hubble important to our understanding of galaxies? ️️he discovered the existence of ...

What is a light year? Answer distance that light travels in 1 year 2. What is the closest star to Earth besides the Sun? (4.2 ly away) Answer proximacentauri 3. What is the age of the universe? Answer 14 billion years 4. What is our cosmic address?What is the Local Group? Answer Earth, solar system,milky way galaxy, local group, local supercluster 5. Order of planets in our solar system

The cosmic calendar - a imaginary concept to examine the history of our planet compressed into one year-Carl Sagan, human civilzation doesn't come on the scene until almost the last few seconds. This made people realize how insignificant human society is on the grand scale of time and the imense universe especially in the human-centerd view of religions. planet - A large body in space that orbits a star and does not produce light of its own star - A ball of hot gas, primarily hydrogen and...

If we traveled away from Earth through the galaxy, the constellations correct answers would appear to change slowly The scientific method can be summarized using the three words correct answers observation theory testing Galileo's observations of the full phase of Venus were inconsistent with the Ptolemaic model of the solar system because correct answers In the Ptolemaic model Venus is always closer to the Earth than the Sun is One Sidereal day is _____ than one solar day correct an...

A lightyear is the distance that _________ can travel in one _____ correct answers light, year How many km in a lightyear? correct answers 9.50 x 10^12 km How many KM in an AU correct answers 1.5 x 10^8 How many AU in a lightyear correct answers 63,000 AU Earth is a planet while the Sun is a________ correct answers Star Solar System correct answers consists of the sun, the planets, and some smaller bodies such as moon, asteroids, and comets - one planetary system Name the plane...

Complete Test Bank for Stars and Galaxies, 10th Edition by Michael A. Seeds ; ISBN13: 9781337399944...(Full Chapters included Chapter 1 to 19)...1. Here and Now. 2. A User's Guide to the Sky. 3. Moon Phases and Eclipses. 4. Origins of Modern Astronomy. 5. Gravity. 6. Light and Telescopes. 7. Atoms and Spectra. 8. The Sun. 9. The Family of Stars. 10. The Interstellar Medium. 11. Formation and Structure of Stars. 12. Stellar Evolution. 13. Deaths of Stars. 14. Neutron Stars and Black...

How did Hubble classify galaxies? - -shape and structural properties -stellar content -gas and dust -star formation -stellar motion What are the different categories Hubble used to classified galaxies ? - Spirals, barred spirals, ellipticals, irregulars What are the characteristics of spiral galaxies? - -flattened galactic disk with spiral arms -central galactic bulge -extended halo of faint old stars -spirals are classified according to the size of the central bulge and tightness of...