"Fardig, Paul S." wrote: >> Looking at the mathematics, >> I see a joule is defined as a kg*m2/s2, >> while a watt is a kg*m2/s3.
That's the hard way (above). It's easier just to note that the watt is defined as a joule per second (1 W = 1 J/s). From that it follows that a watt-seccond equals a joule (1 W.s = 1 J), simply by multiplying both sides be 1 s. Regards, Bill Hooper retired physics professor, Florida, USA -------------------------------------- "Simplification" begins with "SI" --------------------------------------
