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OpenStudy (anonymous):

The total U.S. consumption of electricity in a particular year was 5.0 x 1012 kilowatt-hours. What is the mass equivalence of this amount of energy? Show all calculations leading to an answer

OpenStudy (anonymous):

\[E = mc^2\]

OpenStudy (anonymous):

What does e m and c stand for

OpenStudy (michele_laino):

hint: E = energy, m = equivalent mass c= light speed=3*10^8 m/second

OpenStudy (jtfan2000):

5 x 1012 = 5060 x 3x108 = 1539440

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