Ch 12 Practice Problem Answers
Hooke's Law - 12A
1. 2.25 x 10-3 m 2. 0.120 m3. 0.31 m 4. 49 N/m 5. 3.87 N/m 6. (a) 31.6 N (b) 3.22 kg 7. 190 N 8. 377 kg
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Period of a simple pendulum - 12B 1. 5.2 s 2. 0.777 s 3. 3.8 s 4. 61 m 5. 1.4 x 103 m 6. 0.358 m/s2 |
Period of a mass-spring system - 12C 1. 0.869 kg 2. 1.5 x 104 kg 3. 4.00 x 102 N/m 4. 3.1 x 106 N/m 5. 0.897 s 6. 1.24 s
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Wave speed - 12D 1. 6.12 m 2. 2.72 m 3. 1.7 x 104 Hz 4. 131 Hz 5. 3.30 x 102 m/s 6. v = 1.43 x 103 m/s Dt = 2.10 s
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