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daniel_i_l
daniel_i_l is offline
#2
Nov11-05, 02:48 AM
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just like time and space, mass is relative to. If you agree that you can mesure mass with a ruler and a clock, then since those mesurments are relative, the mass that you mesure will be relative to. It is important to note that the rest-mass dosn't change.
you might want to look here:
http://www.physicsforums.com/showthread.php?t=85095