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The magnitude of an earthquake is found by the equation M = 2/3 * log E/10^11.8 , where M is the magnitude and E is the energy released. Find the magnitude of an earthquake that released 10 ^ 21.6 ergs of energy

The magnitude of an earthquake is found by the equation M = 2/3 * log E/10^11.8 , where-example-1
User GgDeGreat
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The answer is D. 6.5

User Martin Fehrs
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