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Why e equals mc2 is necessary?

Updated: 8/18/2019
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13y ago

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e=mc2 is a constant. so you can use it in a variety of equations without having to do all the math up to that point. basically it helps us measure astronomical numbers. -- (see: avigadro's number for a similar constant with a similar kind of use.)

e=mc2 means this: energy is the same as mass multiplied by the speed of light times the speed of light. this would be a huge number - so it's shortened by saying e=mc2. it's a nickname!!

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13y ago
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Q: Why e equals mc2 is necessary?
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