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Mathematics 7 Online
OpenStudy (anonymous):

Why is mass multiplied by the speed of light squared in Einsteins famous equation?

OpenStudy (anonymous):

it's a relation. the amount of energy is measured by taking the mass of something and multiplying it by its speed squared.

OpenStudy (anonymous):

not just speed of light!

OpenStudy (anonymous):

e=mc^2 e is energy, m is mass c is speed.

OpenStudy (anonymous):

you wanna know how much energy to make a 100 kg toy car go 30 meters per second? e = 100kg *30^2

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