Astronomy Homework Help - ScholarAnswer

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    Black holes are zones in the outer space, often spiral in shape these are intensegravitational fields left behind when a giant star collapses. This is other wiseknown as a supernova explosion. They got the name Black Holesince they do notallow even light to pass through.

    Though black holes have a high level of gravitational pull, they are not thedestructive forcethat would suck in the universe as many are led to believe.

    The black holes have the same amount of gravitational force that the amount of

    matter equivalent would do in the universe when spread over a large area.Once a black hole is formed, it will absorb matter around it and may merge intoother black holes resulting in super massive black holes.

    What are Black Holes?

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    How Are Black Holes Formed?

    A supernova explosion is a nuclear fusion reaction that burns up the star

    This Fusion uses most of the energy of the star as it burnsThe burning star expands and is called a Giant this has high density and gravityAs a result no energy remains to repel the matter in the giantFinally the remaining matter is thinly spread out with a very high gravity that it

    becomes a black hole and consumes considerable amount of matter before it is balanced

    Though the most common explanation for the formation of a Black Hole, there areother factors and smaller incidents that are required to form one. The same isdiscussed as follows

    Black holes are so dense that they can consume whole starts andplanets and the general consensus is that the middle of everygalaxy has a black hole though this claim is not verified.

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    Physical Properties of Black HolesSince there are no means to measure the physical activity inside a black hole,

    methods used to this purpose use relativity to determine the parameters.Possible MeasuresOnly the following are gauged through scientific calculationsIs determined by the Gravitational analog of Gauss's law, the ADM massaway from the black holeThe charge is calculated by inversely noticing the charge of the particles

    repelled by the charged black holeIs determined by using the frame dragging by the gravito-magnetic field from

    a distanceTwo black holes of exact same parameters are theoretically the same andconsidered as non distinct entities.

    MassCharge

    Angular Momentum

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    A black hole has no mass and hence there is no time inside itThey are considered as portals to pass through time.Though this is not a conventionally proven idea, the possibility is accepted overallHowever, there are no known ways to enter a black hole without total annihilation

    and hence the possibility of using a black hole to our benefit is currently just a theory

    Are they useful or can they be utilized?

    This possibility however has been used in fiction time and again as reality fromempowering space vehicles to being a time-stalled fortress. Research on making atleast a fraction of this into reality is being conducted by all major nations.

    Possible ways to detect and use the energy of a black hole include using aparticle accelerator of the same charge so that the reaction can be intensifiedwith its energy is the most feasible proposal so far

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    Most Recurring Types Include

    Different TypesSome definite sets of characteristics are found always together in most of the

    black holes discovered so far and hence they are generally categorized as follows.

    Schwarzchild Black HoleReissner Nordstorm Black HoleKerr Black HoleKerr-Newman Black Hole

    Has no charge and doesnot rotateHas a charge but norotationRotates but has no charge

    Carries a charge androtates as well

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