PHY2053_S07_Ex2_Q15 - 77777 77777 Instructor(s): PHYSICS...

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Unformatted text preview: 77777 77777 Instructor(s): PHYSICS DEPARTMENT PHY2053 Exam 2 Spring 2007 Name (print, last first): Signature: On my honor, I have neither given nor received unauthorized aid on this examination. YOUR TEST NUMBER IS THE 5-DIGIT NUMBER AT THE TOP OF EACH PAGE. (1) Code your test number on your answer sheet (use lines 7680 on the answer sheet for the 5-digit number) . Code your name on your answer sheet. DARKEN CIRCLES COMPLETELY . Code your UFID number on your answer sheet. (2) Print your name on this sheet and sign it also. (3) Do all scratch work anywhere on this exam that you like. Circle your answers on the test form. At the end of the test, this exam printout is to be turned in. No credit will be given without both answer sheet and printout. (4) Blacken the circle of your intended answer completely, using a #2 pencil or blue or black ink . Do not make any stray marks or some answers may be counted as incorrect. (5) The answers are rounded off. Choose the closest to exact. There is no penalty for guessing. If you believe that no listed answer is correct, leave the form blank . (6) Hand in the answer sheet separately. Constants g = 9 . 80 m/s 2 G = 6 . 67 10- 11 N m 2 /kg 2 c = 3 10 8 m/s 1 mi = 1.609 km 1 ft = 0.305 m 1 in = 2.54 cm 1 cal = 4.186 J 1 hp = 746 W 1 atm = 1 . 013 10 5 N/m 2 1. Two planets move in circular orbits around the same star. Planet 1 has a speed of v 1 = 2 m/s with an orbital radius of R 1 = 10 7 m. Planet 2 has twice the orbital radius of planet 1. What is the velocity (in m/s) of planet 2?m....
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This note was uploaded on 04/29/2008 for the course PHY 2053 taught by Professor Buchler during the Spring '06 term at University of Florida.

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PHY2053_S07_Ex2_Q15 - 77777 77777 Instructor(s): PHYSICS...

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