A3rd order active high pass filter is implemented using three inverting filter stages which each, by themselves, have a 3-db cutoff frequency of 1000 hz. when the three are connected in series, the cutoff frequency shifts. find the cutoff frequency of the combined filter. design and draw a 3-stage filter with 0 db total gain using only 18 kω resistors

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.