An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the law of energy. Which statement describes why the student is incorrect?

Blank is the perceived frequency of a sound wave

Definition: this is the weighted average of all of the isotopes of an element.

Question 1(multiple choice worth 2 points) in order to be considered work, the components that must be present are • a force and a movement in the same direction as the force an action which causes movement and an opposite reaction an action which causes no movement or reaction a force and a movement in the opposite direction of the force