When it has a magnetic field
It’s the crest, the crest is the top part of the wave and the trough is the bottom so they correspond
Answer:B
Explanation:i think so im not suree
Answer:
The kinetic molecular theory of matter states that: Matter is made up of particles that are constantly moving. All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state.