Arubber ball collides elastically with the sidewalk. does each object have the same kinetic emery after the collision as it had before the collision? explain. does each object have the same momentum after the collision as it had before the collision? explain.

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

Which graph shows the temporary relationship between the aggregate price level and the aggregate quantity supplied? a. long-run aggregate supply curve b. aggregate demand curve c. short-run aggregate supply curve d. point of equilibrium

Marian recently made the decision to try to re-wallpaper her own kitchen—which was a mistake given her personality! to compound the mistake, she selected a complex wallpaper pattern that included flowers and trees. each time she put one strip of paper on the wall, she became increasingly upset if there was not a perfect match from the pattern of one strip to the next. if one flower was off by as much as one-tenth of an inch, she would tear down the strip, remove the excess paste, and try again with the next strip. over eight hours after she started this job, she has only succeeded at putting up six strips of wallpaper, which covered about 10 percent of the room in which she was working. marian may suffer from personality disorder.