A mass m =50 g is suspended from a spring with spring constant k8.0 N/m.1. Determine the force acting on the mass when it is displaced 8 cm from its equilibriumposition. If the mass is then released, what is the period of oscillation? What is thefrequency?2. What is the expression for the uncertainty in the total energy Etot of equation 4.6?Assume an uncertainty in k of dk, uncertainty in m of dm, uncertainty in x of dxand an uncertainty in v of dv. Assume g is perfectly known (i.e., ôg = 0). Refer tothe section on Uncertainty Calculations in the introduction, Section 0.2.2, for moredetails. (Hint: first compute the uncertainties of the three terms in the sum, then addthe uncertainties in the sum together.)6.

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A mass m = 50 g is suspended from a spring with spring constant k 8.0 N/m. 1. Determine the force acting on the mass when it is displaced 8 cm from its equilibrium position. If the mass is then released, what is the period of oscillation? What is the frequency?