Prelab Exercises for Oscillatory Motion & Conservation of Energy Prelab exercises should be attempted after reading the relevant chapter in the lab manual and before coming to the lab. Prelab exercises must be submitted prior to the start of each lab using eClass. 1. A mass m = 51 g is suspended from a spring with spring constant k = 12.3 N/m. (a) Determine the magnitude of the spring force acting on the mass when it is dis- placed 8 cm from its equilibrium position. (b) If the mass is then released, what is the frequency and period of oscillation? 2. Given the equations below and assuming an uncertainty in k of ok, uncertainty in m of om, uncertainty in x of ox, uncertainty in v of ov, and g is a constant, what are the expressions for the uncertainties in the Spring Potential Energy, Uspring, the Gravi- tational Potential Energy, U, and the Kinetic Energy, K? Refer to the uncertainty rules described in the Introductory Information chapter of the lab manual. Show your work! Uspring = ka2 Ug = mgx K = mul