1.14. Consider the system given by the input/output relationship (a) When x[n] is equal to a constant c for all show that y[n] is equal to c for all (b) Write a MATLAB M-file to compute the output response y[n] resulting from the in- put for Express your answer by giving the M-file and the MATLAB plot. (c) Compare your result in part (b) with the MA filter response obtained in Problem 1.12. x[n] = 5 sin1pn/10 + p/42, 0 ... n ... 69. n Ú 5.

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.