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Unformatted text preview: tates at 62 rev / min. How Fast is it rotating in rad/sec? 1. 5.34071 2. 6.07375 3. 3.14159 4. 3.97935 5. 6.17847 6. 3.76991 7. 4.29351 8. 4.71239 9. 5.55015 10. 6.49262 Correct answer: 6 . 49262 rad / s. Explanation: Let : = 62 rev / min . (62 rev / min) 2 1 rev 1 min 60 s = 6 . 49262 rad / s . 003 (part 2 of 2) 5.0 points At what speed does the point on the record touching the stylus (needle) move when the stylus (needle) is 9 . 9 cm From the center? 1. 58.4336 2. 64.277 3. 25.6563 4. 43.9823 5. 33.4684 6. 36.4425 7. 38.9557 8. 47.5742 Version 115/ABDAD QTest #7 Antoniewicz (57420) 2 9. 27.8555 10. 46.4642 Correct answer: 64 . 277 cm / s. Explanation: Let : r = 9 . 9 cm . v = r = (9 . 9 cm) (6 . 49262 rad / s) = 64 . 277 cm / s ....
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This note was uploaded on 05/02/2011 for the course PHY 303K taught by Professor Turner during the Spring '08 term at University of Texas at Austin.
 Spring '08
 Turner
 Physics

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