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Re: [Phys-l] Relativistic Mass or lack thereof in intro books



I - wrote in part



"The equation is therefore writing a relationship for one component (a spatial 
component) of the 4-momentum.  IMO, it is a scalar equation and not susceptible 
to criticism on dimensional grounds. (see the textbook for other assumptions)"



Stating "scalar equation" goes over bounds"; I believe it would have been 
better to write





"The equation is therefore writing a relationship for one component (a spatial 
component) of the 4-momentum.  IMO, it is therefore not susceptible to 
criticism on dimensional grounds; in the sense of equating a 4-vector to a 
3-vector. (see the textbook for other assumptions)"




_________________________

Joel Rauber, Ph.D
Professor and Head of Physics
Department of Physics
South Dakota State University
Brookings, SD 57007
Joel.Rauber@sdstate.edu<mailto:Joel.Rauber@sdstate.edu>
605.688.5428 (w)
605.688.5878 (fax)

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