A harmonic oscillator has angular frequency is and amplitude A. @ lithat is the magnitude of displacement when the elastic potential energy is equal to the kinetic energy ( Assume U= 0at equilibrio (5) What is the magnitude of velocity when the elastic potential energy is equal to the Kinetic energy ( Assume U= 0 at equilibrium) How often does this occur in each cycle? Expres your andwen as an integer? (D) What is the time between occurrences ? Express your answer in terms of some or all the variables us sind A, At= Is At an instant when the displacement is equal to A 2 " what fraction of the total energy of the system is Kinetic. Exprey your answer numerically . K