Let x(n) = {2,4,-3,x(0)=1,-5,4,7}. Generate and plot the samples (use the stem function) of the following sequences. 1. x1(n) = 2x(n − 3) + 3x(n + 4) − x(n)
2. x2(n) = 4x(4 + n) + 5x(n + 5) + 2x(n)
3. x4(n) = 2e0.5nx(n) + cos (0.1π n) x (n + 2) , −10 ≤ n ≤ 10

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.