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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.

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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 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.


How do you calculate the radius of a 7 solar mass black hole?

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.


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.


Which of these objects has the largest radius a 1.2M rm Sunwhite dwarf a 1.5M rm Sun neutron star a 3.0M rm Sun black hole?

The black hole with a mass of 3 solar masses has the largest radius among the objects listed. This is because the radius of a black hole is determined by its mass and the Schwarzschild radius formula, which dictates that the radius of a black hole increases with its mass.

Related Questions

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 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.


How do you calculate the radius of a 7 solar mass black hole?

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.


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.


Which of these objects has the largest radius a 1.2M rm Sunwhite dwarf a 1.5M rm Sun neutron star a 3.0M rm Sun black hole?

The black hole with a mass of 3 solar masses has the largest radius among the objects listed. This is because the radius of a black hole is determined by its mass and the Schwarzschild radius formula, which dictates that the radius of a black hole increases with its mass.


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.


How big is the event horizon of a 100-solar-mass black hole?

The event horizon of a 100-solar-mass black hole is about 295 kilometers in radius. It represents the point of no return beyond which nothing, not even light, can escape the gravitational pull of the black hole.


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.


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.


If Earth is converted to Black hole what will be it's size?

If it could, and it couldn't - it would be about the size of a marble of 0.35" radius.Earth couldn't become a black hole because it has too little mass even though, theoretically, micro black holes could exist. [See related link] The smallest known black hole has 3.8 solar masses. Earth is a tiny, tiny fraction of that mass.But if there were an Earth-mass black hole, theoretically it would have the 0.35" radius, according to two different formulas.Cornell University Astronomers give the formula R = (3km) x (M / Msun), where R is the Schwarzschild radius (radius of edge of black hole beyond which nothing returns, ever); M= mass of Earth (or whatever); Msun = mass of the sun. [See related link]Another formula for calculating the R above uses instead Newton's gravitational constant (G), the mass of the object (m), and the speed of light (c). [See related link]


What is the solar radius of arcturus?

I don't know the solar radius, but all I know is the radius and that is 25.7 R. you. :)


What is the mass range for a supermassive black hole?

Anywhere from about 100,000 solar masses (100,000 times the mass of our Sun), to more than 10 billion solar masses (the approximate size of the largest known black holes).