Therr workers trying to move a 1x1x1.2-m crate apply to the

cratethe three horizontal forces shown. (a) if p=240 n, replace the

threeforces with an equivalent force-couple system at a. (b)

replace theforce-couple system of part a with a single force, and

determinewhere it should be applied to side ab. (c) determine the

magnitudeof p so that the three forces can be

replaced witha single equivalent force applied at b.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

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

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.