Kerboodle Gravity Mark Scheme918.5 KB
... force from Newton’s law of gravitation to the centripetal acceleration and also to the period of orbit of a satellite. The equations of relativity are not used, although teachers should be aware that they exist and that space and time are warped near a black hole. Students may need to be shown how t ...
... force from Newton’s law of gravitation to the centripetal acceleration and also to the period of orbit of a satellite. The equations of relativity are not used, although teachers should be aware that they exist and that space and time are warped near a black hole. Students may need to be shown how t ...
A Supermassive Black Hole in the Andromeda Galaxy
... easily be seen in nearby and in distant galaxies. 3 - Gas expelled in supernovae easily escapes from the MDO potential well ⇒ must provide new gas for each generation of stars (~ 103 times). ...
... easily be seen in nearby and in distant galaxies. 3 - Gas expelled in supernovae easily escapes from the MDO potential well ⇒ must provide new gas for each generation of stars (~ 103 times). ...
Modern Physics 2-Quantum Optics
... For a 1.0 cm2 patch of skin, 3.7 mJ of ultraviolet of 254 nm will produced reddening; at 300 nm, 13 mJ are required. A. What is the photon energy corresponding to each of these wavelengths? B. How many total photons do each of these exposures correspond to? C. Explain why there is a difference in th ...
... For a 1.0 cm2 patch of skin, 3.7 mJ of ultraviolet of 254 nm will produced reddening; at 300 nm, 13 mJ are required. A. What is the photon energy corresponding to each of these wavelengths? B. How many total photons do each of these exposures correspond to? C. Explain why there is a difference in th ...
Document
... together in 'superclusters' around great voids which can be 150 million light years across. ...
... together in 'superclusters' around great voids which can be 150 million light years across. ...
Bousso`s Strings 2012 talk
... the talk that this process is described by a unitary S-matrix. To a particle theorist, this is natural—why should the appearance of black holes in the path integral invalidate a fundamental principle of quantum mechanics? ...
... the talk that this process is described by a unitary S-matrix. To a particle theorist, this is natural—why should the appearance of black holes in the path integral invalidate a fundamental principle of quantum mechanics? ...
Black holes, Hawking radiation, information paradox
... the inevitable creation of pairs of particles due to quantum energy fluctuations at the vicinity of their horizon. Furthermore, he was able to show that this radiation is exactly thermal, that is no subtle or secret correlations exist between the emitted particles [1][2]. As we know nowadays, black ...
... the inevitable creation of pairs of particles due to quantum energy fluctuations at the vicinity of their horizon. Furthermore, he was able to show that this radiation is exactly thermal, that is no subtle or secret correlations exist between the emitted particles [1][2]. As we know nowadays, black ...
Maynooth Lectures 5-6
... If the remnant of a supernova explosion is greater than about three solar masses, there is no mechanism that can stop it collapsing. It becomes so small and dense that its resulting gravitational pull is great enough to stop even radiation, including visible light from escaping. Such objects are kn ...
... If the remnant of a supernova explosion is greater than about three solar masses, there is no mechanism that can stop it collapsing. It becomes so small and dense that its resulting gravitational pull is great enough to stop even radiation, including visible light from escaping. Such objects are kn ...
2-GW_MEPhI_2016_bisnovatyi
... We report the observation of a gravitational-wave signal produced by the coalescence of two stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC. The signal was initia ...
... We report the observation of a gravitational-wave signal produced by the coalescence of two stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC. The signal was initia ...
Today in Astronomy 102: “real” black holes, as formed in the
... Even the distinction between matter and antimatter is lost: two stars of the same mass, but one made of matter and one made of antimatter, would produce identical black holes. The black hole has only three quantities in common with the star that collapsed to create it: mass, spin and electric char ...
... Even the distinction between matter and antimatter is lost: two stars of the same mass, but one made of matter and one made of antimatter, would produce identical black holes. The black hole has only three quantities in common with the star that collapsed to create it: mass, spin and electric char ...
AY5 Homework for Quiz 3: Spring 2015
... AY5 Homework for Quiz 3: Spring 2015 1. What is the evidence for black holes of the 3 -‐-‐ 10 MSun variety? Binary systems in which the mass of each component can be measured and one compone ...
... AY5 Homework for Quiz 3: Spring 2015 1. What is the evidence for black holes of the 3 -‐-‐ 10 MSun variety? Binary systems in which the mass of each component can be measured and one compone ...
White Dwarf Stars
... • Recently, Joe Taylor and Russell Hulse won a Nobel Prize for their study of pulsars. • These objects act as cosmic clocks and are useful for probing the dynamics of stars. ...
... • Recently, Joe Taylor and Russell Hulse won a Nobel Prize for their study of pulsars. • These objects act as cosmic clocks and are useful for probing the dynamics of stars. ...
Slides - Indico
... is not so severe: After all, the theory must have a scale and it happens to be around 100GeV. But with gravity there is a very little flexibility. In Einstein’s gravity MP is the scale where gravitational interactions of elementary particles become strong. ...
... is not so severe: After all, the theory must have a scale and it happens to be around 100GeV. But with gravity there is a very little flexibility. In Einstein’s gravity MP is the scale where gravitational interactions of elementary particles become strong. ...
flyer - LIGO Scientific Collaboration
... relative to the Sun, the black holes may be tilted as well. How rapidly the individual black holes are revolving as they orbit one another, and how much they are tilted with respect to one another, is one of the first things we wanted to know about GW150914. The Earth revolves once per day as it orb ...
... relative to the Sun, the black holes may be tilted as well. How rapidly the individual black holes are revolving as they orbit one another, and how much they are tilted with respect to one another, is one of the first things we wanted to know about GW150914. The Earth revolves once per day as it orb ...
Gravity and Quantum Mechanics
... At the atomic scale, we find the strangeness of Quantum Mechanics: Light is both a wave and a particle (and so are electrons and ...
... At the atomic scale, we find the strangeness of Quantum Mechanics: Light is both a wave and a particle (and so are electrons and ...
General Relativity
... The astronaut would be pulled to the center and crushed down to a point - the singularity What actually happens is not known, because: 1) Current theories are not up to the task. 2) We can never do the experiment! ...
... The astronaut would be pulled to the center and crushed down to a point - the singularity What actually happens is not known, because: 1) Current theories are not up to the task. 2) We can never do the experiment! ...
Life Cycle of Stars Powerpoint
... about 20 kilometers across. • A spoonful of matter would have as much mass as a large truck ...
... about 20 kilometers across. • A spoonful of matter would have as much mass as a large truck ...
Eric Tener - FSU High Energy Physics
... Newton’s three laws. However new types of experiments were being done in the mid 1800’s that would change the way scientist thought of classical physics. One of these experiments involved measuring the thermal radiation of a blackbody. The conclusions of such experiments lead to the foundation of qu ...
... Newton’s three laws. However new types of experiments were being done in the mid 1800’s that would change the way scientist thought of classical physics. One of these experiments involved measuring the thermal radiation of a blackbody. The conclusions of such experiments lead to the foundation of qu ...
21st July 2004
... are the Kerr Newman metrics. The no hair theorem implied that all information about the collapsing body, was lost from the outside region, apart from three conserved quantities, the mass, the angular momentum, and the electric charge. This loss of information wasn't a problem in the classical theory ...
... are the Kerr Newman metrics. The no hair theorem implied that all information about the collapsing body, was lost from the outside region, apart from three conserved quantities, the mass, the angular momentum, and the electric charge. This loss of information wasn't a problem in the classical theory ...
General Relativity Einstein`s Theory of Gravity Paul Woodward
... Now we go on to discuss some of the aspects of Einstein’s theory of gravity, which revises Newton’s theory a little. This is called the general theory of relativity. The generalization here is that instead of only considering observers in states of constant motion in straight lines, now Einstein co ...
... Now we go on to discuss some of the aspects of Einstein’s theory of gravity, which revises Newton’s theory a little. This is called the general theory of relativity. The generalization here is that instead of only considering observers in states of constant motion in straight lines, now Einstein co ...
Hawking radiation
Hawking radiation is black body radiation that is predicted to be released by black holes, due to quantum effects near the event horizon. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and sometimes also after Jacob Bekenstein, who predicted that black holes should have a finite, non-zero temperature and entropy.Hawking's work followed his visit to Moscow in 1973 where the Soviet scientists Yakov Zeldovich and Alexei Starobinsky showed him that, according to the quantum mechanical uncertainty principle, rotating black holes should create and emit particles. Hawking radiation reduces the mass and energy of black holes and is therefore also known as black hole evaporation. Because of this, black holes that lose more mass than they gain through other means are expected to shrink and ultimately vanish. Micro black holes are predicted to be larger net emitters of radiation than larger black holes and should shrink and dissipate faster.In September 2010, a signal that is closely related to black hole Hawking radiation (see analog gravity) was claimed to have been observed in a laboratory experiment involving optical light pulses. However, the results remain unverified and debatable. Other projects have been launched to look for this radiation within the framework of analog gravity. In June 2008, NASA launched the Fermi space telescope, which is searching for the terminal gamma-ray flashes expected from evaporating primordial black holes. In the event that speculative large extra dimension theories are correct, CERN's Large Hadron Collider may be able to create micro black holes and observe their evaporation.