Physics, 02.12.2021 01:50 Cullan2383

PLEASE HELP <3 What is the radius of the event
horizon for Cygnus X-1?
A. 21 m
B. 21 km
C. 21 AU
D. 21 light years

(Assume that Cygnus X-1 has 7 times the mass of the Sun and is not rotating. One solar mass = 1.99 x 10^30 kg)

Answers: 1

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PLEASE HELP <3 What is the radius of the event
horizon for Cygnus X-1?
A. 21 m

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