In the united states, when we use this non–renewable resource to generate power, the environment is harmed. coal natural gas petroleum nuclear

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

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2