I need some help.

1. Determine the poles of the transfer function G(s) for the values of and n in Table 1 . 2. Calculate by hand the overshoot (PO) and peak time (tp) step response of the (LRC) circuit for the values of and n in Table 1. 3. Using the MATLAB script below and the values of and n in Table 1, plot the step response of the RLC circuit. Graphically estimate the overshoot (PO) and peak-time using MATLAB tools (Hint: Data cursor). num=??;den=??;y=tf(num,den);%Transferfunctionofthesystemstepplot(y)%Stepresponse 4. Using Simulink, build and simulate the step response of the RLC circuit block diagram (Figure 3). a. Start a new Simulink model window, drag the following blocks from the Simulink library window: Step (from Sources), Transfer Function (from Continuous), Scope (from Sinks), and Save File to Workspace (from Sinks). b. Arrange and connect the blocks. c. Enter blocks' parameters values. Use the values of and n in Table 1 . d. Deliverable: Simulink model and plots of step responses. Table 1. Transfer function parameters for varying time constants 5. Discuss your observations of the step response when varying the natural frequency and the damping ratio