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The 13 g head of a bobble-head doll oscillates in SHM at a frequency of 4.4...

The 13 g head of a bobble-head doll oscillates in SHM at a frequency of 4.4 Hz .

a.) What is the spring constant of the spring on which the head is mounted?

b.) Suppose the head is pushed ‎2.0 cm against the spring, then released. The amplitude of the head's oscillations decreases to 0.5cm in 4.0s. What is the head's damping constant?

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