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It's not a case of usage, but a case of comparison.

E = mc^(2)

&

K.E. = mv^(2)

E = Energy ; K.E. Kinetic Energy

m = mass

c = speed of light in a vacuum ' v = velocity (speed) of the object.

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lenpollock

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4mo ago

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More answers

actaully it does not equal its self i dont wanna figure it out but i have and it equals it's self : Antonio

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Wiki User

14y ago
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Q: How do you use E equals m c squared?
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