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Einstein Mass Energy law states the principle that mass (m) and energy (E) are equivalent according to the equation E = mc2, where c is the velocity of light. When energy is removed from a system then mass is always removed along with the energy.

Table of Contents:

Energy:

**E = mc ^{2}**

Mass:

**m = E/c ^{2}**

Speed of Light in a Vacuum:

**c = √E/m**

**Where,**

E = Energy,

m = Mass,

c = Speed of Light in a Vacuum.

This advanced online Einstein Mass Energy Calculation is used to calculate and find the Energy (E), Mass (M) and Speed of Light in a Vacuum for the given details.

**Example:**

Calculate the Einstein Mass energy for the given details.

Mass (m) = 25 kg

Speed of Light in a Vacuum(c) = 5 m/s

**Solution:**

**Apply formula:**

E = mc^{2}

E = 25*52

E = 25*25

E = 625 J

**Energy (E) = 625 J**