E9.26 For the system of E9.25, determine M p r , , and B for the closed-loop frequency response by using the

E9.26 For the system of E9.25, determine Mp r ω, ω , and

ωB for the closed-loop frequency response by using the Nichols chart. 

Magnitude M M 1 -19 K K L(s)-plane Frequency (rad/s) FIGURE 9.25 Closed-loop frequency response of T(jw) = Gc(jw)G(jw)/(1+G(jw)G(jw)). Note that K > K.