Mass is the amount of matter in an object.
I think the Atomic Mass is the answer
He is making an alloy and getting rid of impurities.
Answer:
By minimizing the height of the body's center of gravity relative to its center of buoyancy
Explanation:
In hydrostatics, the equilibrium state of a floating body relates to either a maximum or minimum of the potential energy.An equilibrium is stable when the potential energy is minimum.Minimizing the height of the floating body's center of gravity relative to its center of buoyancy attains a stable equilibrium configuration.
Answer:
An electron has a Negative charge or -1