Thread: Speed
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Old 04-July-2008, 03:33 PM
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Argos Argos is offline
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Originally Posted by m1omg View Post
How close to the light speed would, say an electron (the lightest particle with a measured nonzero mass of (511 keV/c²) travel if you pumped all the mass-energy in the observable universe into it (4×10 to the 69th power Joules)?
Very, very, very close. Asymptotically close to c.
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