What best describes
energy that is carried by electric and magnetic fields
energy that decreases as a car slows to a stop
energy that increases as a book is lifted to a higher shelf
energy that flows from a hot mug of tea to a cold hand

Energy that flows from a hot mug of tea to a cold hand because the heat just doesn't stop right when it is poured into a cup it steams because of how hot it is, the one with the book if using a applied force not heat, when you drive a car you accelerate to stop and use momentum and a Applied force to go, and the last one is used when you are using a outlet or something so plugging something in to a wall to make it turn on it goes through the cord ( wires ) to make it happen

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