Answer:
a) kinetic energy and gravitational potential energy
Explanation:
The water at the top of the fall possesses kinetic energy because the water is in motion, moving.
The water at the top also possess gravitational potential energy because it is falling under the influence of gravity. It is in a gravitational field.
Answer:
C
Explanation:
Before making a hypothesis, background information is usually used. When you want to write a hypothesis, research is done first so that you can make the most educated guess possible.
Answer
hawk maintains a consistent internal temperature in both the heat of the day and the cool of night this is called as endothermy.
Endothermy also known as warm-bloodedness is defined as the ability of an animal, bird or organism to produce heat and conserve it to maintain a consistent internal temperature.
Answer:
196J
Explanation:
Given parameters:
Mass of skateboard = 1kg
Height off the ground = 20m
Unknown:
Potential energy = ?
Solution:
The potential energy is the energy due to the position of a body above the ground.
It is mathematically expressed as:
Potential energy = mass x acceleration due gravity x height
Potential energy = 1 x 9.8 x 20 = 196J
