0
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.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe Schwarzschild radius for a black hole whose mass is equal to 133 million solar masses would be:
r = 2MG/c2
r = [(2)(2.65x1038kg)(6.67x10-11 N·m2·kg-2]/[(3.00x108m/s)2]
r = 0.39x1012 m
Wiki User
∙ 10y agoA four solar-mass black hole would have a gravitational radius (Schwarzschild radius) of about 11.8 km.
Wiki User
∙ 11y agoThe Schwarzschild radii of a black hole with 1 million solar masses would be 2.95x109m.
Add your answer:
Earn +20 pts
When a star that is more than 40 times bigger than the sun dies what is it called?
It depends. With current theoretical knowledge, a star of this mass has two possible outcomes. 1) It erupts in a cataclysmic explosion as a supernova and then forms into a black hole or 2) If the mass is high enough, currently believed to be around 50 solar masses, it will form directly into a black hole without the supernova.
How long does it take for a hole rotation of Saturn?
10 hours and 40 minutes.
What exactly happens to a substance when it goes into a black hole?
Several things would happen to substance as it goes into a black hole. First and most obvious, it gets accelerated towards the black hole owing to gravitational influence (if it reaches relativistic speeds, this effect alone can cause it to shorten in the direction of acceleration, increase in mass, slow in time for a distant observer, and evidence other effects). Particularly for smaller black holes it would be 'spaghettified', or stretched thin by tidal forces near the black hole. Likely it will interact with the accretion disk and owing to friction and related effects, superheat to plasma temperature and emit significant amount of radiation including at x-ray energy - in fact black holes are quite efficient at converting matter to energy in this manner, perhaps as high as 40 percent of the mass might be lost this way. Once it crosses the event horizon, or boundary at which escape velocity is the speed of light, it would never leave; it must inevitably end up in the singularity at the black hole's center where all mass is concentrated. At that point the nature of the matter changes, our current physical theory does not yet describe the state of the substance at that point - or whether the substance remains matter at all, but theory indicates it occupies zero volume, has infinite density - and for it, due to relativistic effects, time stops entirely.
Had anyone been trapped in a black hole?
in reality we have barely touched into space and havent gone much further than the moon therefore making it quite impossible to have been sucked up into a black hole. maybe in the 100 or 1000 years someone will. :) NO WAY!! Black Holes are hundreds of millions of light years away from us, far beyond our nearest galaxies. Even the nearest one to us is so far distant that, travelling at the spped of light, it would still take hundreds of thousands of years to reach it. No human being on Earth has ever travelled a fraction of this distance, and maybe never will.
What was the agreement called that 40 countries signed in 1988 as a international concern about the hole in the ozone layer?
The Montreal protocol
What is radius of a 40 diameter hole?
the answer is 20
Is a black hole bigger than an asteroid and smaller than Mercury?
It depends. Most black holes are indeed smaller than Mercury, but asteroids vary widely in size. The radius of a black hole's event horizon is directly proportionate to its mass. The largest known stellar mass black holes have about 15 solar masses, which gives a radius of 44 kilometers. This is larger than most asteroids, but some asteroids are larger. It is much smaller than the planet mercury. However, supermassive black holes are far larger than mercury. An 830 solar mass black hole would have an event horizon about the same size as Mercury. The black hole at the center of the Milky Way has about 4 million times the mass of the sun, giving it a radius of over 7 million miles, or 17 times wider than the sun's radius. The largest known black hole is about 40 billion solar masses, giving it a radius of more than 70 billion miles, making it larger than our solar system.
What is the radius of a circle of perimeter 40 cm?
Radius = 40/2pi cm
What is the radius of a circle with a circumference of 40 inches?
radius = 40/(2*pi) in inches
Is 40 mile radius the same as 40 miles?
No, 40 mile radius is an area unit whereas 40 mile is distance. This means that something 30 miles from a location can be said to be in a 40 mile radius from that location.
What is the largest super massive black hole found to date?
Although the measurements are somewhat indirect and size estimation is still in question, the quasar identified as S5 0014+81 is believed to be powered by the largest black hole discovered to date. Its Schwarzschild radius would be about 237 billion kilometers, or about 47 times the distance from the Sun to Pluto, and mass would be about 40 billion times that of the Sun.
How many square miles in a 40 mile radius?
The formula for the area of a circle is: 3.14 (pi) times the radius squared. A circle with a 40 mile radius would have an area of 3.14 x 40 x 40 = 5024 square miles.
How many deaths happened in the black hole of Calcutta?
The number of deaths in the famous mid-18th century incident at the black hole of Calcutta is a subject of dispute, figures seem to vary from low 40's to as many as 123 died.
What is the radius of table tennis ball?
40 millimeters
What is the radius of a circle with area of 40 square inches?
Radius = 3.57 inches.
What is the center if the radius is 16mm?
40 mm
What is the weight of a supermassive black hole?
For a black hole to fall into the supermassive category, it usually would need to have the equivalent of hundreds of thousands up to millions of solar masses. The supermassive black hole at the nucleus of our Milky Way galaxy is calculated to be over 4 million solar masses. The heaviest known black hole, which is still the subject of study, may be as heavy as 40 billion solar masses. (The Sun weighs about 2 x 10^30 kg).
