Chapter 11 2. 3.91 cm³ 10. 32.3 N 42. 2160 kg 52. (a) 0.0424 m/s (b) 0.381 m/s 54. (a) 2.17 x 10^5 kg (b) 16.0 m/s 58. 96.2 Pa 60. (a) 17.1 m/s (b) 0.0223 m³/s 66. 0.0181 m³/s Chapter 12 8. 25.2 °C 20. 1.38 mm 32. 7.29 cm³ 48. 0.0989 m³ 54. 415 g 60. 44.0 h Chapter 14 16. 0.140 m 28. 414 m/s 56. (a) -120 N (assuming initial dir. is +) (b) +120 N (c) 400000 Pa Chapter 15 6. (a) -503,000 J (b) 120 Calories 30. 45 K 66. 503 J/s 68. 11900 J/K 84. 2.93 J 86. 279 s