Which of the follow choices defines energy in scientific terms 1). the ability to do work. 2). the motion of an object. 3). a force used on an object. 4). a change in temperature.

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction

The process of a material going through a change of state from a gas to a liquid