Physical reaction is something you can detect using your senses
That is a graph read both sides and you see speed and distance which must mean that someone is graphing peoples speed.
It’s called an isotope which is an atom with the same number of protons but a different number of neutrons
Answer:
the energy store in an object is called potential energy
the unit of measure is called a joule
Explanation:
potential is what they can do and a joule is they're potential in measurement.