A star starts at rest at infinity, how do you calculate the kinetic energy of the star when it crosses the event horizon of a black hole?
6384
Will an object always fall at an infinite speed in a black hole?
57257
Kinetic energy of an object rotating about an axis not through the center of mass
18038
Can we detect gravitational waves generated from inside the event horizon of a black hole?
91581
Is there a way to split a black hole?
27547
How energy curves spacetime?
9641
An explanation of Hawking Radiation
90481
3D donuts and the centre of a black hole
102774
What happens when an electric charge crosses the event horizon?
89529
Can we exit the event horizon of merging black holes?
39399
Will free-fall object into black hole exceed speed of light $c$ before hitting black hole surface?
8077
Photons in expanding space: how is energy conserved?
149674
Kinetic energy of a photon and Schwarzschild radius
148463
How do I get the negative sign in the expression for Gravitational Potential Energy?
91061
How much energy does the Earth absorb when a gravitational wave passes through it?
61224
If you shoot a light beam behind the event horizon of a black hole, what happens to the light?
29631
How much energy does a photon need to form a black hole?
77778
Why does a star beyond a certain mass limit (Chandrasekhar limit) only become a black hole?