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3 answer(s)

Reply	Jon-Richfield says: A massive disturbance and a single, larger black hole, whether the two uniting holes were the same size or not.  (no votes) Tags: blackhole.
	posted on 2010-11-26 19:36:22 | Report abuse

Reply	Georg says: The black holes will circle each other in a spiral, radiating part of  the mutual potential energy as gravitational waves. The kinetic energy of the two black holes just before merger will add to the "spin" of the unified black hole. Such processes are one of the hypothetical sources of gravitational waves which hopefully will be sensed by some detectors in operation. Georg    (no votes) Tags: blackhole.
	posted on 2010-11-27 00:15:43 | Report abuse

Reply	petrushka.googol says: Given close enough proximity, they will collide and merge into one larger black hole, the force of gravity pulling the two closer and closer.  (no votes) Tags: blackhole.
	posted on 2010-11-27 16:49:09 | Report abuse