10 points) If a filter has unity gain (i. e. 0 dB) in its passband, you know that the frequency at which the output has half the amplitude of the input is known as the cutoff frequency. Hence, the gain is -3 dB at the cutoff frequency. However, if the maximum gain in the passband is not 0 dB, the cutoff frequency is the point where the gain is 3 dB lower than the maximum gain. When measuring cutoff frequency from a Bode plot, if you notice that the maximum gain is 8 dB, then what is the gain at the cutoff frequency?

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.