(Solved): Consider a unity feedback system with the following open loop transfer function: \[ G(s)=4.7 /[s(s ...

Consider a unity feedback system with the following open loop transfer function: \[ G(s)=4.7 /[s(s+8.5)(s+8.5)] \] The phase crossover frequency is FRPM12 Consider a unity feedback system with the following open loop transfer function: \[ G(s)=1.9 /[s(s+7.5)(s+7.5)] \] The gain margin is 3. \( 49.940215509 \mathrm{~dB} \) b. \( 52.951827233 \mathrm{~dB} \) c. \( 17.949376697 \mathrm{~dB} \) d. \( 46.928603784 \) dB e. \( 35.450601965 \mathrm{~dB} \) FRPM1-2021n a. None of the choices is correct. b. The closed loop system is critically stable c. The closed loop system is stable d. The closed loop system is unstable e. The closed loop system has a pole at \( 0.00 \) FRM2-2021n At what point does the root locus intersects with the positive imaginary axis? 3. \( 71.94 \mathrm{i} \) b. \( 1855.44 i \) c. \( 52.80 i \) d. \( 66.00 \mathrm{i} \) e. 84.64i