3.45 The response of an LTI system to input x(t) = δ(t) − 2e −3t u(t) is output y(t) = e −2t u(t). Compute each of the following: (a) Frequency response function H(ω) (b) Poles and zeros of the system (c) LCCDE description of the system (d) Impulse response h(t)

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

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.