A ball is rolled off a table that is 10 m tall and lands 15 m from the table legs. How fast was it initially going?

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )

well clustered together.

points close on a scatter diagram

the components of a vector are the parts of the vectors that are to each other.

b perpendicular