Homework 07 - homework 07 – GADHIA TEJAS – Due Mar 7 2007 4:00 am 1 Question 1 part 1 of 1 10 points Two identical stars a fixed distance D

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: homework 07 – GADHIA, TEJAS – Due: Mar 7 2007, 4:00 am 1 Question 1 part 1 of 1 10 points Two identical stars, a fixed distance D apart, revolve in a circle about their mutual center of mass, as shown below. Each star has mass M and speed v . G is the universal gravitational constant. D v v M M Which of the following is a correct relation- ship among these quantities? 1. v 2 = 4 GM D 2. v 2 = 2 GM 2 D 3. v 2 = M GD 4. v 2 = GM D 5. v 2 = GM 2 D 6. v 2 = 4 GM 2 D 7. v 2 = 2 GM D 8. v 2 = GM D 2 Question 2 part 1 of 2 10 points Compare the gravitational force on a 23 . 5 kg mass at the surface of the Earth ( R E = 6 . 4 × 10 6 m, M E = 6 × 10 24 kg) with that on the surface of the Moon ( M M = 1 81 . 3 M E , R M = 0 . 27 R E ). What is it on the Earth? Answer in units of N. Question 3 part 2 of 2 10 points What is it on the Moon? Answer in units of N. Question 4 part 1 of 2 10 points Given: G = 6 . 6726 × 10 − 11 N m 2 / kg 2 . Three masses are arranged in the ( x,y ) plane (as shown in the figure below, where the scale is in meters). y ( m )- 5- 3- 1 0 1 2 3 4 5 x ( m )- 5- 4- 3- 2- 1 1 2 3 4 5 1 kg 7 kg 3 kg What is the magnitude of the resulting force on the 1 kg mass at the origin? Answer in units of N. Question 5 part 2 of 2 10 points Select the figure showing the direction re- sultant force on the 1 kg masses at the origin. 1. None of these figures is correct. homework 07 – GADHIA, TEJAS – Due: Mar 7 2007, 4:00 am 2 2. y- 5- 3- 10 1 2 3 4 5 x- 5- 4- 3- 2- 1 1 2 3 4 5 3. y- 5- 3- 10 1 2 3 4 5 x- 5- 4- 3- 2- 1 1 2 3 4 5 4. y- 5- 3- 10 1 2 3 4 5 x- 5- 4- 3- 2- 1 1 2 3 4 5 5. y- 5- 3- 10 1 2 3 4 5 x- 5- 4- 3- 2- 1 1 2 3 4 5 6. y- 5- 3- 10 1 2 3 4 5 x- 5- 4- 3- 2- 1 1 2 3 4 5 7. y- 5- 3- 10 1 2 3 4 5 x- 5- 4- 3- 2- 1 1 2 3 4 5 Question 6 part 1 of 2 10 points The universal gravitationan constant is 6 . 6726 × 10 − 11 N m 2 / kg 2 . Three 9 kg masses are located at points in the xy plane as shown in the figure. 48 cm 57 cm What is the magnitude of the resultant force (caused by the other two masses) on the mass at the origin?...
View Full Document

This note was uploaded on 04/05/2010 for the course BIO 52435 taught by Professor Clerck during the Spring '10 term at University of Texas at Austin.

Page1 / 7

Homework 07 - homework 07 – GADHIA TEJAS – Due Mar 7 2007 4:00 am 1 Question 1 part 1 of 1 10 points Two identical stars a fixed distance D

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online