No sorry, wish I could help
The answer is going to be magnetic domain
It is the 'crest' part that the green arrow is identifying.
Answer:
Elastic Potential Energy
Explanation:
Elastic Potential Energy (“Spring Energy”) is the form of energy an object has when it is stretched, compressed, twisted, bent, or otherwise has its shape changed as long as the object resists and will try to return to its original state.
Here is my step-by-step-work. Let me know if you have any questions! :)