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Mass-energy equivalence (E = mc²)

Physics · Modern physics

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About this practice set

Mass-energy equivalence (E = mc²) is part of Physics (Modern physics). Questions are generated with new numbers each time you practise. Levels available: Easy. After you answer, an explanation is shown.

Example questions

A taste of what you will practise. Answers are revealed after you try.

  • Easy

    How much energy is released by annihilating 8.0e-9 kg of matter? (c = 3.0e+8 m/s)