Test answers including E=mc2 on a blackboard

Test answers including E=mc2 on a blackboard

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Caption: Blackboard test. Various solutions to sums written around Einstein's famous mass-energy equation, E=mc2, for a school test. Einstein worked out the interrelationship of mass and energy in his special theory of relativity of 1909. In the equation, E is energy, m is mass, and c is the velocity of light. Since the velocity of light is such a large quantity, a small amount of mass multiplied by the square of the velocity of light is equivalent to a huge amount of energy.

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Keywords: blackboar, blackboard, calculation, e=mc2, mass-energy equivalence equat, mathematics, physics, relativity, school, science education, sum, sums

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