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A humbling fraction of physics boils down to direct application of simple harmonic motion, the description of oscillating objects. Learn the basis for springs, strings, and quantum fields.

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Two blocks, each of mass \( m = 2.0 \text{ kg},\) are connected by a spring of force constant \( k = 3.0 \text{ N/m} \) and placed on a horizontal frictionless surface, as shown in the above diagram. If an equal force of \( F = 2.0 \text{ N} \) is applied to each block in the direction of arrow, what is the approximate time period of the system when the force is removed?

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You bounce on a huge trampoline and start oscillating up and down with a period of \(3~\mbox{s}\). After a long while, you come to rest but the trampoline below you is displaced below its natural height. How much is the trampoline bent **in m**?

**Details and assumptions**

- Model the trampoline as a spring.

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