Solved
SI and cm-gm-sec - problem with units
I cannot get J or erg in SI. No problem in cm-gm-sec units system. Same with Prime! Why?

I cannot get J or erg in SI. No problem in cm-gm-sec units system. Same with Prime! Why?

No error in Mathcad and Mathcad Prime!
CGS: coul^2/m = J. SI : coul^2/m not equal J.
The answer is here:
https://en.wikipedia.org/wiki/Statcoulomb

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