Answers to Odd-Numbered Problems

Answers to Odd-Numbered Problems - Answers to Odd-Numbered...

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Chapter 1 1. 2.15 ± 10 4 kg/m 3 3. 184 g 5. (a) 7.10 cm 3 (b) 1.18 ± 10 ² 29 m 3 (c) 0.228 nm (d) 12.7 cm 3 , 2.11 ± 10 ² 29 m 3 , 0.277 nm 7. (a) 4.00 u ³ 6.64 ± 10 ² 24 g (b) 55.9 u ³ 9.29 ± 10 ² 23 g (c) 207 u ³ 3.44 ± 10 ² 22 g 9. (a) 9.83 ± 10 ² 16 g (b) 1.06 ± 10 7 atoms 11. (a) 4.01 ± 10 25 molecules (b) 3.65 ± 10 4 molecules 13. no 15. (b) only 17. 19. 1.39 ± 10 3 m 2 21. (a) 0.071 4 gal/s (b) 2.70 ± 10 ² 4 m 3 /s (c) 1.03 h 23. 4.05 ± 10 3 m 2 25. 11.4 ± 10 3 kg/m 3 27. 1.19 ± 10 57 atoms 29. (a) 190 y (b) 2.32 ± 10 4 times 31. 151 ´ m 33. 1.00 ± 10 10 lb 35. 3.08 ± 10 4 m 3 37. 5.0 m 39. 2.86 cm 41. ± 10 6 balls 43. ± 10 7 or 10 8 rev 45. ± 10 7 or 10 8 blades 47. ± 10 2 kg; ± 10 3 kg 49. ± 10 2 tuners 51. (a) (346 µ 13) m 2 (b) (66.0 µ 1.3) m 53. (1.61 µ 0.17) ± 10 3 kg/m 3 55. 115.9 m 57. 316 m 59. 4.50 m 2 61. 3.41 m 63. 0.449% 65. (a) 0.529 cm/s (b) 11.5 cm/s 67. 1 ± 10 10 gal/yr 69. ± 10 11 stars Chapter 2 1. (a) 2.30 m/s (b) 16.1 m/s (c) 11.5 m/s 3. (a) 5 m/s (b) 1.2 m/s (c) ² 2.5 m/s (d) ² 3.3 m/s (e) 0 5. (a) 3.75 m/s (b) 0 0.579 t ft 3 /s 1.19 ± 10 ² 9 t 2 ft 3 /s 2 7. (a) (b) 1.60 m/s 9. (a) ² 2.4 m/s (b) ² 3.8 m/s (c) 4.0 s 11. (a) 5.0 m/s (b) ² 2.5 m/s (c) 0 (d) 5.0 m/s 13. 1.34 ± 10 4 m/s 2 15. (a) (b) 1.6 m/s 2 and 0.80 m/s 2 17. (a) 2.00 m (b) ² 3.00 m/s (c) ² 2.00 m/s 2 19. (a) 1.3 m/s 2 (b) 2.0 m/s 2 at 3 s (c) at t ³ 6 s and for (d) ² 1.5 m/s 2 at 8 s 21. 2.74 ± 10 5 m/s 2 , which is 2.79 ± 10 4 g 23. (a) 6.61 m/s (b) ² 0.448 m/s 2 25. ² 16.0 cm/s 2 27. (a) 2.56 m (b) ² 3.00 m/s 29. (a) 8.94 s (b) 89.4 m/s 31. (a) 20.0 s (b) no 33. v xf ³ 3.10 m/s x f ² x i ³ v t ² a x t 2 /2; t · 10 s A.41 Answers to Odd-Numbered Problems 1.6 0 10 20 t (s) a x (m/s 2 ) x (m) 0 t (s) 4 2 –2 2 4 6
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A.42 Answers to Odd-Numbered Problems 35. (a) 35.0 s (b) 15.7 m/s 37. (a) ± 202 m/s 2 (b) 198 m 39. (a) 3.00 m/s (b) 6.00 s (c) ± 0.300 m/s 2 (d) 2.05 m/s 41. (a) ± 4.90 m, ± 19.6 m, ± 44.1 m (b) ± 9.80 m/s, ± 19.6 m/s, ± 29.4 m/s 43. (a) 10.0 m/s up (b) 4.68 m/s down 45. No. In 0.2 s the bill falls out from between David’s Fn- gers. 47. (a) 29.4 m/s (b) 44.1 m 49. (a) 7.82 m (b) 0.782 s 51. (a) 1.53 s (b) 11.5 m (c) ± 4.60 m/s, ± 9.80 m/s 2 53. (a) 55. 0.222 s 57. 0.509 s 59. (a) 41.0 s (b) 1.73 km (c) ± 184 m/s 61. in agreement with Equation 2.11 63. (a) 5.43 m/s 2 and 3.83 m/s 2 (b) 10.9 m/s and 11.5 m/s (c) Maggie by 2.62 m 65. (a) 45.7 s (b) 574 m (c) 12.6 m/s (d) 765 s 67. (a) 2.99 s (b) ± 15.4 m/s (c) 31.3 m/s down and 34.9 m/s down 69. (a) 5.46 s (b) 73.0 m (c) v Stan ² 22.6 m/s, v Kathy ² 26.7 m/s 71. (a) See top of next column. (b) See top of next column. 73. 0.577 v Chapter 3 1. ( ± 2.75, ± 4.76) m 3. 1.15; 2.31 5. (a) 2.24 m (b) 2.24 m at 26.6° from the positive x axis. 7. (a) 484 m (b) 18.1° north of west 9. 70.0 m 11. (a) approximately 6.1 units at 112° (b) approximately 14.8 units at 22° 13. (a) 10.0 m (b) 15.7 m (c) 0 15. (a) 5.2 m at 60° (b) 3.0 m at 330° (c) 3.0 m at 150° (d) 5.2 m at 300° 17. approximately 420 ft at ± 19. 5.83 m at 59.0° to the right of his initial direction 21. 1.31 km north and 2.81 km east 23. (a) 10.4 cm (b) 35.5° 25. 47.2 units at 122° from the positive x axis. 27. ( ± 25.0 i )m ³ (43.3 j )m 29. 7.21 m at 56.3° from the positive x axis. 31. (a) 2.00 i ± 6.00 j (b) 4.00 i ³ 2.00 j (c) 6.32 (d) 4.47 (e) 288°; 26.6° from the positive x axis. 33. (a) ( ± 11.1 i ³ 6.40 j ) m (b) (1.65 i ³ 2.86 j )cm (c) ( ± 18.0 i ± 12.6 j ) in. 35. 9.48 m at 166° 37. (a) 185 N at 77.8° from the positive x axis (b) ( ± 39.3 i ± 181 j )N 39. A ³ B ² (2.60 i ³ 4.50 j )m v xi t ³ at 2 /2, 1 2 a xi t 2 ³ 1 6 Jt 3 x ² x i ³ v xi t ³ a x ² a xi ³ Jt , v x ² v xi ³ a xi t ³ 1 2 Jt 2 , 41. 196 cm at ± 14.7° from the positive x axis.
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This note was uploaded on 10/02/2009 for the course 440 221 taught by Professor - during the Spring '09 term at Rutgers.

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Answers to Odd-Numbered Problems - Answers to Odd-Numbered...

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