$F_{x}, F_{y}, F_{z}$ are three of the components of some 4-vector. The forth components is likely to be: a) F.u/c b) F.u c) $(P c)^{2}$ d) $mathrm{dP} / mathrm{dt}$
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A 4-vector is an object in spacetime that transforms linearly under Lorentz transformations. Common examples include the four-position, four-velocity, and four-momentum. The components of a 4-vector typically consist of three spatial components and one time Show more…
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