Water can change from a liquid to a solid or a gas and back to a liquid, but its molecular structure always stays the same.
During this time, the total mechanical energy of the object remains constant.
Answer: Option C
<u>Explanation:</u>
The sum total of potential energy and the kinetic energy presented in the system is called mechanical energy. The total mechanical energy in the system, which represents the combined potential and kinetic energies, remains constant as long as the only force work at conservative forces, and mechanical energy is maintained on this principle.
For example, a gravity box in which we throw the ball straights up, and then leave the hand with a specific amounts of kinetic energy. In the first half of the track, there is no kinetic energy, but it has potential energy similar to kinetic energy that it had when that left our hand. When we catch that again, it has the same kinetic energy as when that left our hand. That is why gravity belongs to the category of conservative forces.
Answer:
Explanation:
In an uniformly accelerated circular motion, the angle traveled by the object is given by:
Here 
is the final angular speed, 
is the initial angular speed and t is the time of the motion. Replacing the given values:
Answer:
0.1g to 0.0000001g hope it helps uu
B is the answer, I’m really good at this subject
