Consider a plant given by G(s) = 1 (s+2)(2s+1) in a unity feedback structure.

(a) Determine the system type and the steady state error with respect to a tracking polynomial reference input with a proportional controller, D(s) = 5.
(b) Verify your result using MATLAB by plotting unit step and ramp responses. Use the Matlab command lsim() for ramp input. Attach the code and the plots.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.