High energy waves have Gamma rays
Light energy is defined as how nature moves energy at an extremely rapid rate, and it makes up about 99% of the body's atoms and cells, and signal all body parts to carry out their respective tasks. An example of light energy is the movement of a radio signal.
Answer:
Approximately .
Assumption: the ball dropped with no initial velocity, and that the air resistance on this ball is negligible.
Explanation:
Assume the air resistance on the ball is negligible. Because of gravity, the ball should accelerate downwards at a constant near the surface of the earth.
For an object that is accelerating constantly,
,
where
- is the initial velocity of the object,
- is the final velocity of the object.
- is its acceleration, and
- is its displacement.
In this case, is the same as the change in the ball's height: . By assumption, this ball was dropped with no initial velocity. As a result, . Since the ball is accelerating due to gravity, .
.
In this case, would be the velocity of the ball just before it hits the ground. Solve for
.
.
B. The answer is most likely B