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Unformatted text preview: lim (kl9356) Physics 1710 Homework 1 Weathers (17104) 1 This printout should have 9 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 10.0 points The mass of the planet Saturn is 5 . 64 10 26 kg and its radius is 6 10 7 m. Calculate its density. Answer in units of kg / m 3 . 002 10.0 points This problem shows how dimensional analysis helps us check and sometimes even find a formula. A rope has a cross section A = 10 . 7 m 2 and density = 2150 kg / m 3 . The linear density of the rope , defined to be the mass per unit length, can be written in the form = x A y . Based on dimensional analysis, determine the powers x and y by choosing an expression below. 1. = A 2 2. = 1 A 3. = A 2 4. = A 5. = 1 A 2 6. = A 2 2 7. = A 2 8. = A 2 9. = A 10. = A 003 10.0 points A light year is the unit of distance that light, with a speed of 2 .....
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This note was uploaded on 09/07/2010 for the course PHYS 1710 taught by Professor Weathers during the Fall '08 term at North Texas.
 Fall '08
 Weathers
 Magnetism, Mass, Work

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