Predict the major organic product for the reaction below. Draw the product in the planar (overhead) representation, clearly showing stereochemistry by drawing in a wedge or hashed bond per stereocenter. You must explicitly show all atoms at each stereocenter.

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

Fluids at rest possess no flow energy. a)- true b)- false

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