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14 August, 17:05

Approximately how much energy is contained in 1 g of matter?

A. 3 * 1013 J

B. 9 * 1013 J

C. 3 * 1016 J

D. 9 * 1016 J

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Answers (1)
  1. 14 August, 19:37
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    Option (B) is correct. Energy contained in one gram of matter=9 x 10¹³ J

    Explanation:

    mass = 1 g = 0.001 kg

    c = velocity of light = 3 x 10⁸ m/s

    The mass energy equivalence equation is given by

    E = m C²

    E = (0.001) (3 x 10⁸) ²

    E=9 x 10¹³ J

    Thus energy contained in one gram of matter=9 x 10¹³ J
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