E13.11 A system has a process transfer function

Gp(s)= 9 $ +9 (a) Determine G(z) for Gp (s) preceded by a zero- order hold with T = 0.15 s. (b) Determine whether the digital system is stable. (c) Plot the impulse re- sponse of G(z) for the first 15 samples. (d) Plot the first 30 samples of the output response of G(z) when the input is a step of 0.5 unit.