1. A pendulum of length L and mass M has a spring of force constant k connected to it at a distance h below its point of suspension, Li k M Assume that the vertical suspension is rigid and that both the vertical suspension and spring are massless. (a) What is the frequency of vibration of the system for small values of the amplitude (small 0)? (b) If the pendulum is displaced by Omar and then released from rest, what is its kinetic energy when it returns to vertical (0 = 0)