Physics, 26.10.2020 21:40 CoolRahim9090

Which data provide the best evidence of supermassive black holes at the centers of galaxies? A.
sonar observations of the black hole
B.
observations of infrared radiation coming from the black hole
C.
observations of visible light coming from the black hole
D.
X-ray observations of superheated gas around the black hole

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Which data provide the best evidence of supermassive black holes at the centers of galaxies? A.

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