Answer:
Element Symbol # of Atoms
Oxygen O 2
Sulfur S 1
Explanation:
Answer:
A. Potential energy decreases and kinetic energy increases, but the total amount of mechanical energy remains the same.
Explanation:
Potential energy is the latent energy in an object at rest. Kinetic energy, is the energy expressed by an object in motion.
The ball is starting at rest and that is where the potential energy is at. In that case, the ball has no kinetic energy (no movement). When the ball begins to move that kinetic energy starts to increase and the potential energy decreases because it is no longer at rest.
The amount of matter in an object is called its, mass. How much the mass weights would be referred to as weight
Gravity is a conservative force.
That means that when you move around in a gravitational field,
the amount of energy you need in order to get someplace
depends only on where you start and where you finish, and
it's not affected by the route you take to get there.
Friction ... as an example ... is not like that. If friction is present and
you wander around on the way from 'A' to 'B', taking a longer route,
then you'll need more energy than you would need for a more direct,
shorter route.