They give off a particle to become stable.
It is B since they are traveling at the same speed one is positive so the other had to be negative hope this helps;)))))
I think 100 mph pushing the car the opposite direction
Potential energy is the store she energy from an object this could include rubber bands. Kinetic energy is the energy that deals with motion a good example is a person running
He discovered several species of finches that varied from island to island and it helped him make his theory of natural selection.
hope this helps !
