Design a sequential circuit which recognizes the sequences 0011 or 1100 on a synchronous input, x. That is, your circuit should have one output signal which is high only when the last 3 inputs and the current input are 0011 or 1100. The output (z) is shown below for a sequence of inputs (x).

x 0 0 1 1 0 0 1 1 1 0 0 1 0 1 1 0 0 1 1 1 1 1 1 0 0 1 0 . . . . .z ? ? ? 1 0 1 0 1 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 . . . .

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Fluids at rest possess no flow energy. a)- true b)- false

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