Assertion: black hole's energy | /r/HasProperty | released by 5×10megatons of tnt
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text: For comparison, according to the Hawking radiation theory , a 1-second-lived black hole has a mass of 2.28×10kg, equivalent to an energy of 2.05×10J that could be released by 5×10megatons of TNT, and all its mass is converted to energy.