Unformatted text preview: from point A to point B, how many months does it take the planet to move from point C to point D? Use Kepler's Laws. n m l k j A. 0.1 months n m l k j B. 5.4 months n m l k j C. 36.4 months n m l k j D. 8.1 months Answer: D 4. [3 pts] If the mass of the Moon were suddenly multiplied by 10 and the mass of the Earth by 2.3, by what amount would the force of the Earth's gravitational attraction on the Moon be multiplied? Use Newton's law of gravity. Round off your answer to 1 decimal place. Answer: 23 5. [3 pts] If the distance between the Earth and the Moon suddenly was multiplied by 1.9, by what multiplicative factor would the acceleration of the Moon due to the Earth's gravitational pull be changed? Use Newton's 2nd law and his law of gravity. Round your answer to one decimal place. Answer: 0.3 ©2007 ANGEL Learning, Inc. All rights reserved....
View Full Document
- Spring '08
- General Relativity, Celestial mechanics