What equation famously relates energy, mass, and the speed of light?
Category: Knowledge · Difficulty: hard
Hint: It's attributed to a famous physicist known for his theory of relativity.
Answer
E=mc²
Explanation
E=mc² is Einstein's equation showing the equivalence of mass and energy.
This is a hard knowledge riddle — a tricky one that takes a little thought. The answer is E=mc².
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