In an effort to develop molecular surfaces with interesting electronic properties, compounds such as the one below were prepared. consider the possibilities for preparation of this compound, by evaluating the construction of a new bond at either of the indicated positions (a or b). determine which would be the better disconnection to incorporate into the retrosynthesis, and suggest a synthesis for this compound using an sn2 reaction.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

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It is increased due to the doppler effect. (apex)