Three forces all connect by the tail at the origin of an xy plane. f1 is 300 n and is 46 degrees to the left of the negative y axis. f2 is 725 n and is 33 degrees above the positive x axis. f3 is 650 n and lines up with the negative y axis. what is the resultant?

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

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

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.