Black Holes - schoolphysics
... However if you jump up very fast - 40000 km/hour (25000 miles/hour) then you will never come down. You have reached the ESCAPE VELOCITY of the Earth Escape velocity of a black hole Now the pull of gravity of a Black Hole is so huge that its escape velocity is as big as the speed of light. That’s why ...
... However if you jump up very fast - 40000 km/hour (25000 miles/hour) then you will never come down. You have reached the ESCAPE VELOCITY of the Earth Escape velocity of a black hole Now the pull of gravity of a Black Hole is so huge that its escape velocity is as big as the speed of light. That’s why ...
Lecture 28 - Empyrean Quest Publishers
... that a highly concentrated spherical mass would shrink to a point and have an event horizon around it beyond which nothing could escape (Vescape> c). The Schwarzschild radius, R(event horizon) = 3 km x mass (in solar masses). Oppenheimer (~1940) demonstrated that a stellar remnant above 3 solar mass ...
... that a highly concentrated spherical mass would shrink to a point and have an event horizon around it beyond which nothing could escape (Vescape> c). The Schwarzschild radius, R(event horizon) = 3 km x mass (in solar masses). Oppenheimer (~1940) demonstrated that a stellar remnant above 3 solar mass ...
Black holes - schoolphysics
... Black Hole The escape velocity of a body obviously increases the closer to the body that you go, for example for the Earth the escape velocity at the surface of the planet is 11.3 km per second 10 000 km above the surface this will have fallen to just under 7 km per second. Clearly for a Black Hole ...
... Black Hole The escape velocity of a body obviously increases the closer to the body that you go, for example for the Earth the escape velocity at the surface of the planet is 11.3 km per second 10 000 km above the surface this will have fallen to just under 7 km per second. Clearly for a Black Hole ...
14-black-holes
... Is it a cosmic vacuum cleaner? • No, as long as you’re outside the Schwartzchild radius. • For example, if the Sun were a black hole of the same mass, the Earth’s orbit would be NO different. ...
... Is it a cosmic vacuum cleaner? • No, as long as you’re outside the Schwartzchild radius. • For example, if the Sun were a black hole of the same mass, the Earth’s orbit would be NO different. ...
