A causal LTI system has zeros at {3, 4} and poles at {1, 2}. The transfer function H(z) has H(0) = 6. Compute: a. The transfer function H(z).
b. The zeros and poles. Is the system stable?

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.