Question

a. define the law of conservation of energy.
b. as water descends from the to of a hydroelectric dam, its gravitation potential energy is converted into electric energy. how much gravitational potential energy is releases when 1500 kg water descends 20 m to the generators? how much of kinetic energy will be available with the water during it descend?

Answer 1

In physics, the law of conservation of energy states that the total energy of an isolated system remains constant, it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.