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1. An object of mass m = 0.33 kg sits on a frictionless surface and is attached to the end of a spring with spring constant k = 2.5 N/m. It is pulled out +0.25 m from the equilibrium position and released.

(a) What is the speed of the object when it is at +0.05 m?

(b) What is the frequency of oscillation?

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