Consider a unity feedback system with open-loop transfer function: G(s) = 2 2+−2 system with open-loop transfer function. a) What is the system type? b) What is the open-loop gain? c) What is the steady state error for a step input? d) What is the steady state error for a ramp input? e) What is the steady state error for a acceleration input? f) Use Simulink to verify the results from c)-e). g) Is the open-loop transfer function stable, unstable or marginally stable? Why? How about the closed-loop?

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.