- #1
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I wrote something on PF some time ago and nobody said what I wrote was wrong. But now I am almost certain that it is. What I said is that if you have a cube of matter, then its mass is E/c² where E is the total energy of its N constituents:
[tex]E = \sum_i^N (m_ic^2 + K_i)[/tex]
I would correct that last expression by saying that the total energy of its constituents is the sum of the mass energies added to the total mecanical energy of the system:
[tex]E=U_{sys} + \sum_i^N (m_ic^2 + K_i)[/tex]
ja?
[tex]E = \sum_i^N (m_ic^2 + K_i)[/tex]
I would correct that last expression by saying that the total energy of its constituents is the sum of the mass energies added to the total mecanical energy of the system:
[tex]E=U_{sys} + \sum_i^N (m_ic^2 + K_i)[/tex]
ja?