22_SN1987a
... The kinetic energy = ½ mv2, where m is the mass of the object and v is its velocity. The gravitational potential energy of an object = GmM/r, where G is the gravitational constant, m is the mass of the object, M is the mass of the Earth and r is the Earth's radius. ...
... The kinetic energy = ½ mv2, where m is the mass of the object and v is its velocity. The gravitational potential energy of an object = GmM/r, where G is the gravitational constant, m is the mass of the object, M is the mass of the Earth and r is the Earth's radius. ...
Honors Question – Black Holes and Neutron Stars In Friday`s lecture
... In Friday's lecture, we learned that physicists think that black holes are mass singularities – an enormous mass concentrated in essentially a point. Since gravitational force increases as the distance decreases, it's natural to conclude that within some radius the gravitational force is so large th ...
... In Friday's lecture, we learned that physicists think that black holes are mass singularities – an enormous mass concentrated in essentially a point. Since gravitational force increases as the distance decreases, it's natural to conclude that within some radius the gravitational force is so large th ...
Special relativity Before discussing some of the history and results of
... This means that the effects we will describe cannot be used to make a person’s lifetime seem longer to them, although it can be used to make that person’s lifetime seem longer to other who are moving differently. With that firmly in mind, what is special relativity? In the late 1800s a crisis was de ...
... This means that the effects we will describe cannot be used to make a person’s lifetime seem longer to them, although it can be used to make that person’s lifetime seem longer to other who are moving differently. With that firmly in mind, what is special relativity? In the late 1800s a crisis was de ...
Black Holes
... 2. If you are in freefall, you are also weightless. Einstein says these are equivalent. So in freefall, the light and the ball also travel in straight lines. 3. Now imagine two people in freefall on Earth, passing a ball back and forth. From their perspective, they pass the ball in a straight line. ...
... 2. If you are in freefall, you are also weightless. Einstein says these are equivalent. So in freefall, the light and the ball also travel in straight lines. 3. Now imagine two people in freefall on Earth, passing a ball back and forth. From their perspective, they pass the ball in a straight line. ...
Formative Assessment - University of Dayton
... Grade 9-Ohio 1- Explain how stars and other celestial objects provide information about the processes that cause changes in composition and scale of the universe. ...
... Grade 9-Ohio 1- Explain how stars and other celestial objects provide information about the processes that cause changes in composition and scale of the universe. ...
Black Holes
... • The physical properties of black holes can be explained by the general theory of relativity. • According to general relativity, matter tends to “warp” or curve the space near it. • The greater the mass, the greater the warping. • Objects follow the curvature off space produced by a nearby massive ...
... • The physical properties of black holes can be explained by the general theory of relativity. • According to general relativity, matter tends to “warp” or curve the space near it. • The greater the mass, the greater the warping. • Objects follow the curvature off space produced by a nearby massive ...
DOC - Cool Cosmos
... Like the tug of gravity on Earth, a black hole exerts the same kind of force on its surroundings. But with these fantastically compact and massive objects, the gravitational pull is so strong that even light can't escape. That is why the object is “black” -- it does not give off any light. It’s as i ...
... Like the tug of gravity on Earth, a black hole exerts the same kind of force on its surroundings. But with these fantastically compact and massive objects, the gravitational pull is so strong that even light can't escape. That is why the object is “black” -- it does not give off any light. It’s as i ...
Black Holes - Physics and Astronomy
... The escape velocity for the Earth is normally 11 km/s, what would the escape velocity be if you launched a rocket from a platform 21000 km above the surface of the Earth (4 Earth radii): A: 22 km/s ...
... The escape velocity for the Earth is normally 11 km/s, what would the escape velocity be if you launched a rocket from a platform 21000 km above the surface of the Earth (4 Earth radii): A: 22 km/s ...
ppt
... • Event horizon – point of “no return”. Everything within this radius is dragged to the singularity by enormous gravity. ...
... • Event horizon – point of “no return”. Everything within this radius is dragged to the singularity by enormous gravity. ...
BlackBubbles2013
... • A gravitational field may be “transformed away” at any point if we choose an appropriate accelerated frame of reference – a freely falling frame. • Einstein specified a certain quantity, the curvature of spacetime, that describes the gravitational effect at every point. ...
... • A gravitational field may be “transformed away” at any point if we choose an appropriate accelerated frame of reference – a freely falling frame. • Einstein specified a certain quantity, the curvature of spacetime, that describes the gravitational effect at every point. ...
Black Holes: The Ultimate Abyss from discovery channel
... 1. To detect black holes, astronomers look for _____. A) ultraviolet radiation they emit B) objects falling out of space-time C) nuclear reactions at their centers D) stars circling massive compact objects 2. Astronomers theorize that when our sun runs out of nuclear fuel, it will become a _____. A) ...
... 1. To detect black holes, astronomers look for _____. A) ultraviolet radiation they emit B) objects falling out of space-time C) nuclear reactions at their centers D) stars circling massive compact objects 2. Astronomers theorize that when our sun runs out of nuclear fuel, it will become a _____. A) ...
Powerpoint Presentation (large file)
... • The entire mass of a black hole is concentrated in an infinitely dense singularity • The singularity is surrounded by a surface called the event horizon, where the escape speed equals the speed of light • Nothing—not even light— can escape from inside the event horizon ...
... • The entire mass of a black hole is concentrated in an infinitely dense singularity • The singularity is surrounded by a surface called the event horizon, where the escape speed equals the speed of light • Nothing—not even light— can escape from inside the event horizon ...
BlackHoles2011 - Montgomery College
... • In a black hole, the curvature of space-time is so great that, within a certain distance from its center (whose radius, r, is defined as its circumference, C, divided by 2π, r=C/2π), all light and matter become trapped on the surface until the end of time. ...
... • In a black hole, the curvature of space-time is so great that, within a certain distance from its center (whose radius, r, is defined as its circumference, C, divided by 2π, r=C/2π), all light and matter become trapped on the surface until the end of time. ...
Black Holes - schoolphysics
... You can think of a Black Hole as a sort of invisible whirlpool that sucks in everything around it - I mean everything, even light. The gravitational field of a black hole is rather like that shown in the diagram – once you have slipped over what is called the ‘event horizon’ you fall into the centre ...
... You can think of a Black Hole as a sort of invisible whirlpool that sucks in everything around it - I mean everything, even light. The gravitational field of a black hole is rather like that shown in the diagram – once you have slipped over what is called the ‘event horizon’ you fall into the centre ...
Testing the black hole no-hair theorem using LIGO extreme mass
... by the Kerr metric, the EMRI waveforms will tell us this, since they encode a map of the spacetime structure near the black hole. • Analogy with geodesy led to the term ‘bothrodesy’ from the greek βοθρος meaning ‘sacrificial pit’ (ancient Greek). • Or ‘cesspool’ (modern Greek)! We prefer ‘holiodesy’ ...
... by the Kerr metric, the EMRI waveforms will tell us this, since they encode a map of the spacetime structure near the black hole. • Analogy with geodesy led to the term ‘bothrodesy’ from the greek βοθρος meaning ‘sacrificial pit’ (ancient Greek). • Or ‘cesspool’ (modern Greek)! We prefer ‘holiodesy’ ...
solution
... There are three primary techniques that astronomers use to conclude that supermassive black holes exist at the center of many, if not most, large galaxies. 1) Optical and radio telescopes are used to observe massive discs (V) around and highly directed, energetic jets (R) emanating from galaxies, 2) ...
... There are three primary techniques that astronomers use to conclude that supermassive black holes exist at the center of many, if not most, large galaxies. 1) Optical and radio telescopes are used to observe massive discs (V) around and highly directed, energetic jets (R) emanating from galaxies, 2) ...