Target marketing, in contrast to mass marketing,
a. is limited to small market segments
b. assumes that all customers are basically the same
c. ignores markets that are large and spread out
d. focuses on fairly homogeneous market segments

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

If a simple machine reduces the strength of a force, what must be increased?