An airplane flies six hundred miles to the south; then, after landing and refueling, it flies due north for three hundred miles. what is the airplane's displacement? (remember, displacement is a vector, so direction needs to be indicated in your answer).

d =

Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals

How are deposits reflected in a balance sheet? what are they known as?

The earth's internal process which drives seafloor spreading is