Are you talking about a constructive force / constructive wave? Sorry I think that's what you are asking
Answer:
The first law of thermodynamics doesn't actually specify that matter can neither be created nor destroyed, but instead that the total amount of energy in a closed system cannot be created nor destroyed (though it can be changed from one form to another).
Explanation:
1radian<span> = 180/ degrees
Hopefully this helps.</span>