Acylindrical steel specimen is subjected to a stress of 100 mpa along the longitudinal axis. the undeformed specimen has a diameter do=10 mm and a length lo=40 mm. the length and diameter of the deformed specimen are 40.019 mm and 9.9986 mm, respectively. assuming the specimen remained elastic during deformation, calculate the elastic modulus, shear modulus, and poisson's ratio for this steel.

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

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

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.