Consider the differential equation: x 00 + 2kx0 + x = 0; x(0) = 0, x0 (0) = b where primes denote differentiation with respect to time, t. Find the solution of the differential equation for the cases (i) k2 > 1, (ii) k2 < 1 and (iii) k2 = 1.

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options