To which wave behavior can audible beats be attributed?
a. constructive interference
b. polarization
c. destructive interference
d. diffraction

For each of the following examples of data, determine which scale of measurement is used. a) the number of miles joggers run per week. b) the starting salaries of graduates of mba programs c) the months in which a firm's employees choose to take their vacations. d) the final letter grades received by students in a math course.

Why does the united states constitution require that a national census be taken every ten years?

Which of the following items would serve as a primary source for a historian studiying the american civil war