For each of the following, determine whether the random process is (1) WSS or (2) mean square ergodic in the mean. a. () = A, where A is a random variable uniformly distributed between 0 and 1.(5pts)b. ()=0, where A is a Gaussian random variable with mean 0 and variance 1.(5pts)c. ()=0+(0) where A, B are uncorrelated zero-mean random variable with variance 2.(5pts)

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false