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The radius of the event horizon of a black hole can be approximated by its Schwarzschild radius which is given by the formula r=2GM/(c^2) where G is Newton's gravitational constant, M is the object's mass, and c is the speed of light. Standard units for mass and speed are kilograms and meters per second respectively, yielding a radius in meters. For a 7 solar mass black hole the Scwarzschild radius would be about 20.67 kilometers. So the event horizon would be about 40.34 kilometers across.
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How big is the event horizon of a 100-solar-mass black hole?
A black hole of 100 solar masses would have an event horizon 185.3 miles in radius.
How large can the volume of a black hole get?
There is no theoretical limit to the MASS of a black hole. The largest known black holes have a mass in excess of a billion solar masses... so far. In the distant future, you can expect them to continue growing.The DIAMETER or the RADIUS of a black hole is directly proportional to the black hole's mass; the radius would be about 3.0 kilometers for every solar mass. The diameter, of course, is twice as much. Thus, a black hole of 10 billion solar masses would have a radius of 30 billion kilometers... about 200 AU.
What is the radius of a black hole singularity?
If it had a radius, then it wouldn't be a singularity. The event-horizon surrounding a black hole has a radius, which depends on the black hole's mass. But the singularity itself has no radius.
What is the gravitational radius of a 4.0 black hole?
The Schwarzchild radius of a black hole is linearly dependent on its mass. The relationship is rs = 2GM / c2 where G is the Newtonian gravitational constant, m is the mass of the black hole, and c is the speed of light. The Schwarzchild radius works out to be 2.95 km per solar mass. There is nothing at all mysterious about this formula. It comes from the standard classical formula for escape velocity ve = sqrt(2Gm / r) by substituting c for the velocity and then solving for r.
What is the approximate schwarzschild radius of a 10 solar mass black hole?
The formula for the Schwarzchild radius of a black hole is given by Rs = (M/Mo) x 3km. Here Mo means the mass of the Sun. For Earth, M/Mo = 0.000 003, that is, Earth has 0.000 003 x Mo. Thus Earth's Schwarzchild radius is about 1 cm. That means that if a giant squeezed Earth into a diameter less than 2cm, it would be a black hole.
What is Schwarzchild radius of a 2 solar mass black hole is about?
The Schwarzchild radius of a 2 solar mass black hole would be about 5.9 km.
Where are the horizons within black holes located?
The event horizon of a black hole is a spherical area round the center of the black hole; it has a radius proportional to the mass of the black hole - a radius of about 2.95 kilometers for every solar mass.
How big is the event horizon of a 100-solar-mass black hole?
A black hole of 100 solar masses would have an event horizon 185.3 miles in radius.
How large can the volume of a black hole get?
There is no theoretical limit to the MASS of a black hole. The largest known black holes have a mass in excess of a billion solar masses... so far. In the distant future, you can expect them to continue growing.The DIAMETER or the RADIUS of a black hole is directly proportional to the black hole's mass; the radius would be about 3.0 kilometers for every solar mass. The diameter, of course, is twice as much. Thus, a black hole of 10 billion solar masses would have a radius of 30 billion kilometers... about 200 AU.
What is the radius of a black hole singularity?
If it had a radius, then it wouldn't be a singularity. The event-horizon surrounding a black hole has a radius, which depends on the black hole's mass. But the singularity itself has no radius.
What is the gravitational radius of a 4.0 black hole?
The Schwarzchild radius of a black hole is linearly dependent on its mass. The relationship is rs = 2GM / c2 where G is the Newtonian gravitational constant, m is the mass of the black hole, and c is the speed of light. The Schwarzchild radius works out to be 2.95 km per solar mass. There is nothing at all mysterious about this formula. It comes from the standard classical formula for escape velocity ve = sqrt(2Gm / r) by substituting c for the velocity and then solving for r.
What is the approximate schwarzschild radius of a 10 solar mass black hole?
The formula for the Schwarzchild radius of a black hole is given by Rs = (M/Mo) x 3km. Here Mo means the mass of the Sun. For Earth, M/Mo = 0.000 003, that is, Earth has 0.000 003 x Mo. Thus Earth's Schwarzchild radius is about 1 cm. That means that if a giant squeezed Earth into a diameter less than 2cm, it would be a black hole.
What would be the Schwarzschild radii of black holes of 1 billion solar masses?
The Schwarzschild radius is directly proportional to the mass of the black hole. It is about 2.95 km for every solar mass.
What black hole property determines the schwarzschild radius of a black hole?
The black hole property that determines the Schwarzschild radius of the black hole is that it has mass but no angular momentum nor electric charge.
What is the radius of a body of mass m to become black hole with zero charge and angular momentum?
This is known as the Schwarzschild radius. It is approximately 2.95 km per solar mass.
What of a black hole is the radius from a black hole at which the escape velocity is approximately equal to the speed of light?
It is called the Schwarzschild radius
If the Sun has a Schwarzschild radius why isn't a black hole?
The Schwarzschild radius is a theoretical radius a thing(here: Sun) would need to be compressed to to become a black hole.
