The mechanical properties of aluminum may be improved by incorporating fine particles of aluminum oxide (al2o3). given that the moduli of elasticity of these materials are, respectively, 69 gpa (10 × 106 psi) and 393 gpa (57 × 106 psi), plot modulus of elasticity versus the volume percent of al2o3 in al from 0 to 100 vol%, using both upper- and lower-bound expressions.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?