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The Theory of Conservation of Mass-Energy

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question 1 of 3

Why was the conservation of energy and mass combined into one conservation law - the conservation of mass-energy?

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1. The man who discovered the law of the conservation of energy was a(n)

2. A certain element's nucleus has a mass of 62.9 AMU (atomic mass units). Which of the following could be the sum of the rest masses of the components of the nucleus?

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