Select the statements that are true of black holes. Select all that are correct. They necessarily gravitationally "pull in" anything in their vicinity Every large galaxy seems to have one at its...

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Extracted text: Select the statements that are true of black holes. Select all that are correct. They necessarily gravitationally "pull in" anything in their vicinity Every large galaxy seems to have one at its centre They can in principle exist at any mass They can be formed in core-collapse supernovae They have been observed to emit Hawking Radiation They have an event horizon Their gravitational redshift is approximately 100