Do Surface currents and deep ocean currents form in the same location

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

The least penetrating form of radiation is