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**Unformatted text preview: **. 2 = x the results of part (a). When the block in Fig.(13.35) is displaced a distance x to the right, the net force on the block is ( 29 ( 29 [ ] ( 29 . 2 1 2 2 1 1 2 2 1 1 x k k x k x k x x k x x k +-- =- + + -From the result of part (a), the term in square brackets is zero, and so the net force is ( 29 , 2 1 x k k +-the effective spring constant is 2 1 eff k k k + = and the period of vibration is s. 702 . 2 m 8.00 kg 100 . = = T...

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