One of the most famous historical model was the geocentric model thought of by plato. This model says that the earth is in the center of the universe and that each of the planets follow complicated paths that go backwards sometimes. This model was used until a new one was accepted. This model is the one we have today called the heliocentric model. It was bought of by Copernicus. Hope that answers your question!
Potential energy is the greatest when the the kinetic energy is the least. This occurs when the ball loses the energy to fly higher, and begins to fall back to the ground.
Answer:
The buoyant force increases as the submersible enters the water, and it remains constant after the submersible is completely immersed.
Explanation:
The buoyant force acting on an object is given by:
where
is the density of the liquid
is the volume of the object immersed in the liquid
g is the gravitational acceleration
From the formula, we see that as increases, the buoyant force increases as well. Therefore, as the submersible is lowered into the water, the buoyant force gradually increases (because the immersed volume increases); however, when the submersible is completely immersed, no longer changes, so the buoyant force remains constant.