Giancoli Physics (5th ed) Chapter 7

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Problems

1. Question

0.18 kg * m/s

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2. Question

-0.720 m/s (opposite the direction of the package)

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3. Question

5.2x107 N, up

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4. Question

V = 4.8 m/s

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5. Question

V = 12.3 m/s

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6. Question

M2 = 1.6x104 kg

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7. Question

0.491 m

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8. Question

v = 5.1x102 m/s

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9. Question

6.7x103 m/s

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10. Question

4.2x103 m/s

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11. Question

0.39 m/s

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12. Question

a.) 4.70 x 103 m/s b.) 5.90 x 108 J

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13. Question

140 kg

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14. Question

130 N

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15. Question

1.32x104 N

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16. Question

(a) 2.0 N * s
(b) 4.0x102 N

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17. Question

2.1 N * s

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18. Question

a.) 4.6 x 102kg * m/s (East) b.) -4.6 x 102kg * m/s (West) c.) +4.6 x 102kg * m/s (East) d.) 6.1 x 102 N (East)

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19. Question

a.) 5.0 N b.) 83 m/s

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20. Question

69 m

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21. Question

1.23 m/s, 4.93 m/s

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22. Question

-1.00 m/s(rebound), 2.00 m/s

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23. Question

-3.00 m/s(rebound), 2.00 m/s

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24. Question

0.70 m/s, 2.20 m/s

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25. Question

a) 1.8 m/s b) 1.1 kg

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26. Question

a) 3.62 m/s, 4.42 m/s b) -396 kgm/s, 396 kgm/s

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27. Question

a) 0.840 kg b) 0.750

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28. Question

.28 m, 1.1 m

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29. Question

a) b) v1=-v1, v2=0 c) v1=v1, v2=2v1 d) v1=0, v2=v1

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30. Question

0.61 m

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31. Question

a) +M/(m+M) b) 0.964

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32. Question

KE(heavier)= 3000J, KE(lighter)= 4500J

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33. Question

v = 15 m/s (54 kh/h)

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34. Question

a) b)e = (h`/h)1/2

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35. Question

9

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36. Question

a) v1 = v2 = 1.9 m/s b) v1 = -1.6 m/s, v2 = 7.9 m/s c) v1 = 0, v2 = 5.2 m/s d) v1 = 3.1 m/s, v2 = 0 e) v1 = -4.0 m/s, v2 = 12 m/s

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37. Question

1.08E-22 kgm/s angle) 30.1 degrees

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38. Question

1) 60 degrees 2) 6.7 m/s

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39. Question

a) b) 0.808 m/s, 33.0 degrees

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40. Question

a) 30. degrees b) v1 = v/square root of 3 c) 2/3

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41. Question

141 degrees

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42. Question

a) 3.47 m/s b) 11.9 m/s c) 3.29 degrees

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43. Question

angle1 =76 degrees, Vn=5.1E5 m/s, Vhe = 1.8E5 m/s

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44. Question

a = 0 degrees, V1 = 3.7 m/s, 2.0 m/s

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45. Question

page 104 (picture)

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46. Question

6.5E-11 m

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47. Question

2.74 m

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48. Question

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49. Question

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50. Question

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51. Question

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52. Question

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53. Question

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54. Question

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55. Question

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56. Question

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57. Question

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58. Question

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59. Question

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60. Question

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61. Question

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62. Question

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63. Question

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64. Question

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65. Question

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66. Question

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67. Question

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68. Question

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69. Question

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70. Question

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71. Question

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72. Question

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73. Question

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74. Question

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75. Question

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76. Question

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77. Question

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