While serving in Iraq with the U. S. Army, Sergeant Carlos Rogers had an improvised explosive device detonate under his vehicle and cause a concussion. Years later, he's finding that he's having problems with his short-term memory, mood swings, and changes to his personality. His psychiatrist orders an MRI scan to determine if the problems are based.

Forces that are equal in strength but opposite in direction are a.) balanced b.) unbalanced c.) always result in motion d.) do not exist

What are two ways in which waves erode the land?

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.