A plant has a transfer function Gp(s)= e-0.5s 5 (s+2)3 (a) If we choose a proportional controller, calculate the value of kp such that the Low Frequency Gain (LFG) is 0dB. kp= (b) If we use a proportional controller with kp=2, calculate the gain crossing frequency in rad/s, wgc = and the phase margin in degrees, PM= Give your answers to one decimal place.