Physics

Question

Use Einstein’s energy equation to solve the following problem. Recall that the speed of light is 3 × 108 m/s. If a 5.0-kg stone is completely converted to energy, what is its energy equivalent in joules?

1 Answer

  • Equation: E = m(c^2)

    c = 3*(10^8)m/s
    m = 5.0 kg

    E = 5.0kg * [3*10^8 m/s]^2 = 45*10^16 joule = 4.5*10^17 joule

    Answer: 4.5*10^17 joule

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