Aunidirectional glass fiber composite has a fiber volume fraction of 60%. the fibers have an elastic modulus 70 gpa and the matrix has an elastic modulus of 2 gpa. the fibers and matrix have poisson’s ratios of 0.2 and 0.34 respectively. the fibers and matrix have shear moduli of 30 gpa and 1.5 gpa respectively. determine the two shear moduli of the composite in the principle directions. assume ξ = 1

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Acompressor receives the shaft work to decrease the pressure of the fluid. 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)