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I don't know what you mean by energy... Are you referring to Joules?

One equation that i doubt you be asking is E = mc^2

If you meant kinetic and potential energy then
PE = mgh <----m:mass, g:9.81m/s^2, h:height
KE = (mv^2) / 2 <---- m:mass, v:velocity

2 5 2
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