Please show your work and answer all questions.

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? 2. Assuming an uncertainty in k of (516, uncertainty in m of 6m, uncertainty in a: of 6:13, uncertainty in v of 61), and that g is perfectly known (i.e., 69 = 0), what is the expression for the uncertainty in the total energy Etot of equation 4.1? Refer to the \f