Melinda and Bart are sitting beside each other in the third car of a roller coaster. From whose reference point are Melinda and Bart moving away from the observer?

Apparently the fungus is called a club

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass