9. The diagram shows a 2 kg block attached to a Hookean spring on a frictionless surface. The block experiences no net force when it is at posttion Hi When the block is to the left of point B the spring pushes it to the right. When the block is to the right of point B, the spring pulls It to the le, The mass is pulled to the right tron-i point B to point C and released at lime t = (J The block then oscillates between positions A and C. Assume that the system consists of the block and the spring and that no dissipative furces act. a) The block takes 40.0 s to make 20 oscillations. What is the "penod oioscillatian' tor this system? b) What is the frequency 0t this oscillating system? c) What is the amplitude of vibration at this system? d) Determine the spring constant at the spring, 1) Explain what would happen to the period and frequency pt this system it you were to double the amplitude while keeping the mass and spring constant the same. 9) Explain what would happen to the period and trequency o! this system it you were to double the mass while keeping the amplitude and spring constant the same, h) Explain what would happen to the period and frequency a! this system if you were to double the spring constant while keeping the amplitude and mass constant