The singularity of a black hole

a. is found outside the event horizon.
b. is located within the event horizon.
c. can only be located if the black hole is in a binary system.
d. doesn't exist since all black holes have a finite size.


B

Physics & Space Science

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Special relativity tells us that

A) the speed of light is variable. B) light moves faster if emitted by a source moving in the direction of emission. C) light moves faster if emitted by a source moving in the direction of emission and light moves slower if emitted by a source moving in the direction opposite the emission. D) light moves slower if emitted by a source moving in the direction opposite the emission. E) light moves at the same speed independent of the motion of the source.

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