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grandymaker [24]
4 years ago
10

Why e=mc2?why not e=mc3?

Physics
1 answer:
Softa [21]4 years ago
4 0
For starters, this question isn’t really about relativity. It’s about energy, and E=mc^2 only makes sense if energy has the units of (mass)*(velocity)^2. So we might as well ask: why is kinetic energy defined as KE = ½*mv^2?
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