Consider the open-loop unstable process transfer function: Gp (S) = 1 (s + 4) (s 3) a) Find the range of Kc for a P-only controller that will stabilize this process. b) As it turns out, Kc 14 will yield a stable closed-loop (does this match with your answer in part (a)?). Typically, there is a measurement lag in the feedback loop. Assuming a first-order lag on the measurement, find the maximum measurement time constant which is allowed before the system (with Kc 14) is destabilized. = =