Which statement best describes mechanical energy? the energy of electricity and motion

the energy of heat and magnetism

the energy of electricity and heat

the energy of moving parts and motion

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)