15. How many times will the [Repeat] block repeat the [Turn for] and [Drive for] blocks inside of it?
a. Only once.
b. Two times.
c. Three times.
d. Four times.

Consider the transfer function for a first-order system g(s)=12(s+7)/(s^2+2s+9) for this system determine: a) poles and zeros of the function, b) the natural frequency and damping ratio, c) the peak value achieved in response to a unit step input, d) the peak time for a unit step input, e) the steady-state system response to a unit step input