1. 4.2 from textbook consider the following transfer function: (a) what is the steady-state gain? (b) what is the time constant? (c) if u(s) = 4/s, what is the value of the output y(t) when t → [infinity]? (d) for the same input, what is the value of the output when t = 10? what is the output when expressed as a fraction of the new steady-state value? (e) if u(s) = (1 – e-s)/s, the unit rectangular pulse, what is the output when t → [infinity]? (f) if u(t) = δ(t), the unit impulse at t = 0, what is the output when t → [infinity]? (g) if u(t) = 5 sin 2t, what is the value of the output when t → [infinity]?