In an elastic collision, what happens to the change in kinetic energy? a) it is transformed into heat and also used to deform colliding objects. b) it is converted into potential energy. c) it is transformed into momentum such that momentum is conserved. d) all of the above. e) none of the above.

Explanation:

There are two types of collision. First one is elastic and other one is inelastic collision.

The linear momentum of two objects before and after the collision remains the same in case of elastic collision. Also, the kinetic energy in elastic collision is conserved. But in case of inelastic collision, the momentum of two objects before and after the collision remains constant but the kinetic energy is in conversed. It changes form one form of energy to another.

Hence, the correct option is (E) "None of the above".

28. evolution

29. environment, survive, offspring  

explanation:

continuous conducting path for current, power supply