Part 1) a The clock in the image above has a pendulum of mass m = 4.20 kg that swings on the end of a rod that is / = 1.45m long. The angular amplitude of the swing is a = 5.54 (which can be considered small). Assume the rod has a negligible mass. Determine the period of the pendulum in seconds. T = Part 2) What is the maximum change in the gravitational potential energy during an oscillation? AU = Part 3) What is the maximum speed of the pendulum bob? U = m/s