Question

Why are humans always thinking of world?! ​

Answer 1

Answer:

coz they want to change the world in the way they like ....

Explanation:

Conservation of energy, principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant. ... When the pendulum swings back down, the potential energy is converted back into kinetic energy. At all times, the sum of potential and kinetic energy is constan