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The special theory of relativity describes the motion and dynamics of objects moving at significant fractions of the speed of light.
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Center of mass of the electromagnetic field [closed]
I’m studying the electromagnetic tensor.
Im trying to derive the equation for the rate of change of the position R of the center mass: $$\frac{\mathrm{d}\mathbf{R}}{\mathrm{d}t}=\frac{\mathbf{G}c^2}{E …