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Which consequence results when gravitational potential energy equals mass energy?

A)Black hole event horizon forms
B)Hawking radiation rapidly diminishes
C)Spacetime exhibits no curvature
D)Quantum entanglement becomes undefined

💡 Explanation

A black hole arises because gravitational collapse occurs when a mass's gravitational potential energy approaches its mass-energy equivalent, and general relativity says that the event horizon therefore is required; rather than zeroing curvature, since it’s increased relative to flat space.

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