The answer is 2.53e-5, I unfortunately don't know how you would really show the work other than showing the division.
Answer:
The gravitational pull of a black hole is so strong that nothing, not even light, can escape once it gets too close. ... Moving at close to the speed of light, these particles ricochet off the event horizon and get hurled outward along the black hole's axis of rotation
(True)
In an experiement things that are changing are called variables.
