# Tagged Questions

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### can black holes pull things at the speed of light? [duplicate]

If Se>c is true than would an object be pulled at the speed of light? In '02 or '03 scientist found gravity's speed to be c or just below c. So, for example, if I floated just beyond an event horizon ...
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### black hole escape speed [closed]

$$S_e = \sqrt{\frac{2GM}{R} } > c$$ Once an object hits the event horizon it should be pulled at the speed of light. Or because of the mass of the object, while light has zero mass, it may have ...
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### Does a black hole have any kind of mass?

Currently in my academics I am studying about the Gravitation. In the chapter I came across a term called the Escape Velocity (It's the velocity of any celestial body which is required by an object to ...
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### Leaving a stellar black hole's orbit [closed]

Say Earth is orbiting a black hole 1900 km in diameter, 1.5E33 kg in mass, and has a gravitational pull of 110,858,725,761.77 m/s^2. It's around 40 AU away Earth's orbital speed is 129,305.15664 m/s. ...
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### Can the Escape Velocity of Regions inside the Event Horizon of a BH be calculated through Newtonian Physics?

Do Newtonian Physics help in determining the escape velocity at and inside the event horizon at a distance less than Schwarzchild Radius from the singularity?
The escape velocity of Earth is $v=\sqrt{\frac {2GM}{R}}$, where $M$ is the mass of the Earth and $R$ it's radius (approximating it as a sphere), and is much less than light speed $c$. But I want to ...