The plot below shows the output response of a certain second-order process to a step change in the input. The input is initially at zero and then suddenly decreases at t = 2. The magnitude of the step change is 2.0. (a) What is the transfer function of this process? (b) Determine the long-time output response of this process to a ramp change in the input, with a ramp rate of 0.5? 5 0 -5 0 -10 -15 Output, y'(t) -20 -25 -30 -35 2 4 9 8 00 10 Time (t) 12 14 16.