What is the principle behind the energy contained in mass?
The Unreasonable Efficiency of Black Holes

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Physics, Science, Engineering, Chemistry
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11th Grade - University
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Hard
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7 questions
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1.
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3 mins • 1 pt
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2.
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3 mins • 1 pt
How much energy can a 5-kilogram cat theoretically provide?
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3.
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3 mins • 1 pt
Why is antimatter not a practical choice for energy generation?
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4.
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3 mins • 1 pt
What are the three options left for extracting energy from mass?
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5.
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3 mins • 1 pt
How efficient are chemical reactions in converting mass to energy?
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6.
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3 mins • 1 pt
What is the efficiency of black holes in converting mass to energy?
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7.
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3 mins • 1 pt
What is the advantage of rotating black holes in energy extraction?
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