A particular amplifier has a nonlinear transfercharacteristic that can be approximated as follows: (a) For small input signals, | vz| <5 mV, vo/vt = 10^3
(b) For intermediate input signals, 5 mV < | v, | <55 mV, Av()/Av, = 10^2.
(c) For large input signals, |vz| > 55 mV, the outputsaturates.
If the amplifier is connected in a negative-feedback loop, find the feedback factor ß that reduces the factor-of-10 change in gain (occurring at|v,) = 5 mV) to only a 10% change. What is the transfer characteristic v, versus vs of the amplifier with feedback?

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.