Answers to Problem Set 7

• Ch. 10
• Ch. 11

Answers for the even numbered problems:

10-74. Q = 8.12 MeV

11-4. (a) T = 1.73 x 10⁸ years; (b) 26 revolutions

11-26. (a) omega = 3.49 rad/s; (b) v_out = 0.52 m/s = 21 inches/s; (c) v_in = 0.26 m/s = 10 inches/s;

11-72. I = 0.054 kg m²

11-74. (a) a = 0.0600 m/s² (down for m₁, up for m₂); (b) T₁ = 4.87 N; (c) T₂ = 4.54 N; (d) alpha = 1.20 rad/s²; (e) I = 1.38 x 10^-2 kg m².

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Last modified 11 March, 2000. © Gregory C. Sloan.