5.for the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope: you have an isotope with 23 protons and 29 neutrons. what element is it? na: sodium si: silicon cu: copper v: vanadium

I think it is Vanadium

Inelastic collision:

A collision in which there is a loss of Kinetic Energy due to internal friction of the bodies colliding.

Characteristics of an inelastic collision:

the momentum of the system is conservedthe momentum of the system is conservedloss of kinetic energy

In a perfectly elastic collision, the two bodies that collide with each other stick together.

Elastic collision:

A collision in which the kinetic energy of the two bodies, before and after the collision, remains the same.

Characteristics of elastic collision:

the momentum of the system is conservedno loss of kinetic energy

In everyday life, no collision is perfectly elastic.

ANSWER:

Given examples:

Two cars colliding with each other form an example of inelastic collision.

Reason:

(They lose kinetic energy and come to a stop after the collision.)

A ball bouncing after colliding with a surface is an example of elastic collision

Reason:

(a very less amount of kinetic energy is lost)