An operational amplifier consists of three stages. The first stage is a differential amplifier with Rout = 200 kohms. The second stage is a CE stage with Rin = 200 kohms and A = -100. Neglecting parasitic capacitances determine the approximate value of the capacitor that must be connected across the second stage to place a dominant pole at 10 Hz.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater