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

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

The discovery of the electron as a subatomic particle was a result of

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?