Gold has a face-centered cubic crystal structure. using the atomic radius found in your equation booklet (not ionic), calculate theoretical density of gold.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.