In the levels-of-processing model of memory, information that gets processed at a (such as accessing the meaning of a word or phrase) is more likely to be retained longer and form a stronger memory than information that is processed at a level (such as the visual characteristics of a word).

a) deeper; shallower

b) shallower; deeper

c) higher; lower

d) lower; higher

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.