How big would a black hole be with the mass of the universe?
Table of Contents
- 1 How big would a black hole be with the mass of the universe?
- 2 How strong is a black hole the size of an atom?
- 3 Are black holes smaller than an atom?
- 4 What is the size of a medium-sized black hole?
- 5 What kind of black hole is a single atom?
- 6 How much angular momentum would it take to make a black hole?
How big would a black hole be with the mass of the universe?
A black hole’s radius is directly proportional to its mass so all we have to do is multiply 3 km by 7.5 x 10^22. So we get 22.5 x 10^22 km or 2.25 x 10^23 km.
How strong is a black hole the size of an atom?
While the biggest black holes have been already detected and even photographed, there is now also feasible evidence – as I show in my recent study – for tiny black holes the size of potassium atoms (with a radius of about 0.23 nanometers, equivalent to 0.23 billionth of a meter).
Are black holes smaller than an atom?
Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter, or “stuff,” in an object. Another kind of black hole is called “stellar.” Its mass can be up to 20 times more than the mass of the sun.
Can a mini black hole swallow the Earth?
Theoretically yes, but practically it would be impossible to create a penny-sized black hole here on Earth. Forming a penny-sized black hole on Earth would take a huge amount of mass and a method of condensing that mass into a tiny area. In addition, the closest known black hole to Earth is 1,000 light-years away.
Is black hole a mass?
The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of no escape is called the event horizon….Physical properties.
| Class | Approx. mass | Approx. radius |
|---|---|---|
| Micro black hole | up to MMoon | up to 0.1 mm |
What is the size of a medium-sized black hole?
The most common type of medium-sized black holes is called “stellar.” The mass of a stellar black hole can be up to 20 times greater than the mass of the sun and can fit inside a ball with a diameter of about 10 miles.
What kind of black hole is a single atom?
The black hole’s mass and size determine what kind it is. The smallest ones are known as primordial black holes. Scientists believe this type of black hole is as small as a single atom but with the mass of a large mountain.
How much angular momentum would it take to make a black hole?
Trying to make a small (two Earth mass) black hole with all of the Earth’s angular momentum would mean that the surface would have to travel at about 10 9 times the speed of light.
What happens to the matter that falls into a black hole?
This would be a gigantic explosion—a significant fraction of the rest of the mass of the Earth matter that actually fell into the black hole will be converted into energy. For astrophysical black holes, up to 40 percent of the rest mass of the accreted material can be emitted in radiation.