How much matter and antimatter must be converted to kinetic energy for this to occur?
Q. The energy to accelerate a starship comes from combining matter and antimatter. When this is done the total rest energy of the matter and antimatter is converted to other forms of energy. Suppose a starship with a mass of 2.5x10^5 kg accelerates to 0.5380c. How much matter and antimatter must be converted to kinetic energy for this to occur? the answer is 4.7 x 10^4
Asked by leann052 - Thu May 1 14:57:30 2008 - - 3 Answers - 0 Comments
A. Ignoring the relativistic mass increase of the starship, the final kinetic energy of the starship is Ek = (1/2)mv^2 = (1/2)*(2.5*10^5)*(.538*3* 10^8)^2 and the total mass of matter and antimatter required is m = Ek/(c^2) The mass of antimatter required would be the same as the mass of matter so each would be half of the total mass you calculate. If you -do- need to take into account relativistic mass increase, it's given by m = m0/(sqrt(1-(v/c)^2)) where m is relativistic mass, m0 is rest mass, v is velocity, and c is 3*10^8 . HTH, Doug
Answered by doug_donaghue - Thu May 1 15:18:32 2008
Q. The energy to accelerate a starship comes from combining matter and antimatter. When this is done the total rest energy of the matter and antimatter is converted to other forms of energy. Suppose a starship with a mass of 2.5x10^5 kg accelerates to 0.5380c. How much matter and antimatter must be converted to kinetic energy for this to occur? the answer is 4.7 x 10^4
Asked by leann052 - Thu May 1 14:57:30 2008 - - 3 Answers - 0 Comments
A. Ignoring the relativistic mass increase of the starship, the final kinetic energy of the starship is Ek = (1/2)mv^2 = (1/2)*(2.5*10^5)*(.538*3* 10^8)^2 and the total mass of matter and antimatter required is m = Ek/(c^2) The mass of antimatter required would be the same as the mass of matter so each would be half of the total mass you calculate. If you -do- need to take into account relativistic mass increase, it's given by m = m0/(sqrt(1-(v/c)^2)) where m is relativistic mass, m0 is rest mass, v is velocity, and c is 3*10^8 . HTH, Doug
Answered by doug_donaghue - Thu May 1 15:18:32 2008
How can antimatter be used against religious beliefs?
Q. The more I read about physics, dimensions, antimatter and all that stuff, I find it easier to believe Creation. For instance when antimatter and matter collide the annihilation transfers energy into mass right (like gamma rays and all)? Well there is only transferring of energy, no creating or depleting it. So how can antimatter and all that create the universe we live in by transferring energy into things like radiation and all.
Asked by bla - Thu Dec 17 20:36:23 2009 - - 3 Answers - 0 Comments
A. Energy and mass are interchangeable according to Einstein's famous equation. Energy is conserved overall. The more you read about physics, the more you realize how the universe is governed by a few simple laws, and how cool it is that we can decipher them. And you realize that a created universe by a god would not necessarily have anything about it we could figure out. And you realize there's no evidence at all for creation. Read a bit more.
Answered by eri - Thu Dec 17 21:16:59 2009
Q. The more I read about physics, dimensions, antimatter and all that stuff, I find it easier to believe Creation. For instance when antimatter and matter collide the annihilation transfers energy into mass right (like gamma rays and all)? Well there is only transferring of energy, no creating or depleting it. So how can antimatter and all that create the universe we live in by transferring energy into things like radiation and all.
Asked by bla - Thu Dec 17 20:36:23 2009 - - 3 Answers - 0 Comments
A. Energy and mass are interchangeable according to Einstein's famous equation. Energy is conserved overall. The more you read about physics, the more you realize how the universe is governed by a few simple laws, and how cool it is that we can decipher them. And you realize that a created universe by a god would not necessarily have anything about it we could figure out. And you realize there's no evidence at all for creation. Read a bit more.
Answered by eri - Thu Dec 17 21:16:59 2009
What is the difference between Dark matter and Antimatter?
Q. I've allways wondered if Dark Matter and Antimatter were close together because Dark matter can't been seen and I would think that antimatter couldn't be seen either. Seeing as antimatter is the opposite of regular matter.
Asked by crapp420 - Mon Oct 15 08:05:00 2007 - - 2 Answers - 0 Comments
A. They are very different things! Anti-matter has the same properties as ordinary matter except that the charges of the basic particles are flipped. For example, an electron is negatively charged, so the anti-matter particle for the electron is positively charged. It is called a positron. There are other, more subtle changes, so the anti-neutron is not the same as a neutron (although both are electrically neutral). There is a collective term for heavier particles like protons and neutrons which are made out of quarks. They are called baryons. Anti-matter is ultimately made out of quarks also, so is baryonic. Because anti-matter has charges, it interacts with light (electromagnetic waves) in essentially the same way as matter does. So,… [cont.]
Answered by mathematician - Mon Oct 15 08:24:45 2007
Q. I've allways wondered if Dark Matter and Antimatter were close together because Dark matter can't been seen and I would think that antimatter couldn't be seen either. Seeing as antimatter is the opposite of regular matter.
Asked by crapp420 - Mon Oct 15 08:05:00 2007 - - 2 Answers - 0 Comments
A. They are very different things! Anti-matter has the same properties as ordinary matter except that the charges of the basic particles are flipped. For example, an electron is negatively charged, so the anti-matter particle for the electron is positively charged. It is called a positron. There are other, more subtle changes, so the anti-neutron is not the same as a neutron (although both are electrically neutral). There is a collective term for heavier particles like protons and neutrons which are made out of quarks. They are called baryons. Anti-matter is ultimately made out of quarks also, so is baryonic. Because anti-matter has charges, it interacts with light (electromagnetic waves) in essentially the same way as matter does. So,… [cont.]
Answered by mathematician - Mon Oct 15 08:24:45 2007
How do we know antimatter exists, and that it's abundant in "other" places in the universe?
Q. Watching "Through the Wormhole" has really intrigued me in Particle Physics, but the programs gives no information about how we discovered antimatter or how we've proved its existence. Additionally, the program (and Wiki) talk about its abundance in other places in the universe, but give no information about how we know this or proved it. Can someone fill in the gaps?
Asked by Dean L - Thu Jul 22 17:50:53 2010 - - 3 Answers - 0 Comments
A. To provide some background, Dirac first discovered when formulating his equation of relativistic quantum mechanics (although not a field theory) that just as many negative energy states existed as eigenfucntions as did positive energy states. Left to his own interpretation he decided that these negative energy states were a sort of sea of negative energy states that were already filled by nature (somehow). However we now interpret these states as anti-particles, that is those particles with the same quantum numbers, except opposite charge, as of "normal" fermions. On some level this distinction is arbitrary as the universe is symmetric wrt matter/antimatter modulo CP violating effects. Carl Anderson then discovered the anti-electron or… [cont.]
Answered by buckeyephysicist - Thu Jul 22 18:56:14 2010
Q. Watching "Through the Wormhole" has really intrigued me in Particle Physics, but the programs gives no information about how we discovered antimatter or how we've proved its existence. Additionally, the program (and Wiki) talk about its abundance in other places in the universe, but give no information about how we know this or proved it. Can someone fill in the gaps?
Asked by Dean L - Thu Jul 22 17:50:53 2010 - - 3 Answers - 0 Comments
A. To provide some background, Dirac first discovered when formulating his equation of relativistic quantum mechanics (although not a field theory) that just as many negative energy states existed as eigenfucntions as did positive energy states. Left to his own interpretation he decided that these negative energy states were a sort of sea of negative energy states that were already filled by nature (somehow). However we now interpret these states as anti-particles, that is those particles with the same quantum numbers, except opposite charge, as of "normal" fermions. On some level this distinction is arbitrary as the universe is symmetric wrt matter/antimatter modulo CP violating effects. Carl Anderson then discovered the anti-electron or… [cont.]
Answered by buckeyephysicist - Thu Jul 22 18:56:14 2010
What would happen if a large quantity of antimatter was sent to a black hole?
Q. Obviously there would be a significant anhilation, but what impact would this have on the black hole? Additionally, I am fascinated by the concept of the "White Hole", for which there have been several questions here in recent days. Thus I am compelled to ask the converse of the question, what would happen if a large quantitly of antimatter was deployed to a white hole. And really isn't deploying it to a black hole also deploying it to a white hole since they are opposite side of the same theoretical coin? Finally, to bring this entire discussion all the way around, would it be theoretically possible to create enough antimatter to replicate the effect of a black hole? Essentially density or anti-density at a magnitude consistent with a… [cont.]
Asked by Tippy the Turtle - Fri May 25 07:45:25 2007 - - 5 Answers - 0 Comments
A. First off how much anti-matter are we talking here? Are you talking about the ammount proportionately equal? Anti-matter infintesimately small possesing no volume yet posessing infinate density... if that is even possible for anti-matter since anti-matter is not nothing but the negative of matter (I think my brain is imploding trying to think of how this can be possible). I would guess assuming you could deliver it directly to the singularity itself you might cease its existance as you would any object with matter. Even so things might not go as you imagine, the physics inside the event horizon are quantum in nature,… [cont.]
Answered by Paul - Fri May 25 09:16:02 2007
Q. Obviously there would be a significant anhilation, but what impact would this have on the black hole? Additionally, I am fascinated by the concept of the "White Hole", for which there have been several questions here in recent days. Thus I am compelled to ask the converse of the question, what would happen if a large quantitly of antimatter was deployed to a white hole. And really isn't deploying it to a black hole also deploying it to a white hole since they are opposite side of the same theoretical coin? Finally, to bring this entire discussion all the way around, would it be theoretically possible to create enough antimatter to replicate the effect of a black hole? Essentially density or anti-density at a magnitude consistent with a… [cont.]
Asked by Tippy the Turtle - Fri May 25 07:45:25 2007 - - 5 Answers - 0 Comments
A. First off how much anti-matter are we talking here? Are you talking about the ammount proportionately equal? Anti-matter infintesimately small possesing no volume yet posessing infinate density... if that is even possible for anti-matter since anti-matter is not nothing but the negative of matter (I think my brain is imploding trying to think of how this can be possible)
Answered by Paul - Fri May 25 09:16:02 2007
What if the universe was a giant globe, surrounded by antimatter?
Q. What if the universe was like a giant sphere, like Earth, floating in antimatter? And what if the finest, most refined energy was everywhere, shinning through the antimatter and matter to separate into spectrum's of dimensions? What if?
Asked by Mel-am Meru - Tue Mar 3 00:50:24 2009 - - 7 Answers - 0 Comments
A. Matter and antimatter annihilate one another,so if it surrounds the universe. The universe would be expanding into destruction. There are not any observations to support this.
Answered by phred01 - Tue Mar 3 07:10:25 2009
Q. What if the universe was like a giant sphere, like Earth, floating in antimatter? And what if the finest, most refined energy was everywhere, shinning through the antimatter and matter to separate into spectrum's of dimensions? What if?
Asked by Mel-am Meru - Tue Mar 3 00:50:24 2009 - - 7 Answers - 0 Comments
A. Matter and antimatter annihilate one another,so if it surrounds the universe. The universe would be expanding into destruction. There are not any observations to support this.
Answered by phred01 - Tue Mar 3 07:10:25 2009
Do you think we will ever create large quantities of antimatter? What about superdense neutron star matter?
Q. Antimatter of course has extremely useful practical applications, but what about neutron star matter? If we could safely construct large amounts of such matter, what could we use it for? (Antimatter has been created at CERN and other particle accelerators in minute amounts, of course, but as far as I know no one has created anything like neutron star matter.)
Asked by Clam The Burnout - Thu Nov 22 14:28:09 2007 - - 7 Answers - 0 Comments
A. the superdense matter that you refer to would be potentially possible to recreate but the amounts of energy required to do so do not currently exist...and i would question the value of doing it and whether the outlay could justify the results or their uses...but the superdense material found in collapsing stars is caused by the gravitational pull sucking up everything in its path until it squeezes itself out of existence, wouldn't wanna get sucked in by that ;)
Answered by mark_2005_london - Thu Nov 22 14:38:49 2007
Q. Antimatter of course has extremely useful practical applications, but what about neutron star matter? If we could safely construct large amounts of such matter, what could we use it for? (Antimatter has been created at CERN and other particle accelerators in minute amounts, of course, but as far as I know no one has created anything like neutron star matter.)
Asked by Clam The Burnout - Thu Nov 22 14:28:09 2007 - - 7 Answers - 0 Comments
A. the superdense matter that you refer to would be potentially possible to recreate but the amounts of energy required to do so do not currently exist...and i would question the value of doing it and whether the outlay could justify the results or their uses...but the superdense material found in collapsing stars is caused by the gravitational pull sucking up everything in its path until it squeezes itself out of existence, wouldn't wanna get sucked in by that ;)
Answered by mark_2005_london - Thu Nov 22 14:38:49 2007
How and when did physics arrive at the conclusion that antimatter must exist?
Q. I'm just an armchair enthusiast. My impression is that there's little doubt among physicists that antimatter is, in fact, a fundamental part of nature. I could be wrong about that, but if it is indeed true, then how did they come to that conclusion? Observation/ empirical evidence? Thought experiments? Inference? Thanks!
Asked by Marcus - Thu Jul 8 15:52:05 2010 - - 1 Answers - 0 Comments
A. Yes observation. It is widely used in experiments these days. I'm sure Wikipedia will have an interesting article for you.
Answered by Nobody - Thu Jul 8 16:46:13 2010
Q. I'm just an armchair enthusiast. My impression is that there's little doubt among physicists that antimatter is, in fact, a fundamental part of nature. I could be wrong about that, but if it is indeed true, then how did they come to that conclusion? Observation/ empirical evidence? Thought experiments? Inference? Thanks!
Asked by Marcus - Thu Jul 8 15:52:05 2010 - - 1 Answers - 0 Comments
A. Yes observation. It is widely used in experiments these days. I'm sure Wikipedia will have an interesting article for you.
Answered by Nobody - Thu Jul 8 16:46:13 2010
What kind of particle accelerator is antimatter made in?
Q. I'm doing a project on antimatter and wikipedia lists 2 kinds of particle accelerators but doesn't say which one is used. There's circular accelerators and linear accelerators. And is it low-energy or high-energy?
Asked by Ashley - Sat Feb 20 16:43:30 2010 - - 2 Answers - 0 Comments
A. Either kind will do . What is important is the energy reached by the initial particles - their energy needs to be sufficiently large so that when they "stop" the "lost" energy is converted into particles ( rather than radiation ). These "created " particles will be produced as oppositely charged pairs ( by the conservation of charge ) and so half of them will be the stuff we call "anti matter ".
Answered by rex - Sat Feb 20 16:58:35 2010
Q. I'm doing a project on antimatter and wikipedia lists 2 kinds of particle accelerators but doesn't say which one is used. There's circular accelerators and linear accelerators. And is it low-energy or high-energy?
Asked by Ashley - Sat Feb 20 16:43:30 2010 - - 2 Answers - 0 Comments
A. Either kind will do . What is important is the energy reached by the initial particles - their energy needs to be sufficiently large so that when they "stop" the "lost" energy is converted into particles ( rather than radiation ). These "created " particles will be produced as oppositely charged pairs ( by the conservation of charge ) and so half of them will be the stuff we call "anti matter ".
Answered by rex - Sat Feb 20 16:58:35 2010
What would be a good hook for a speech/lecture on dark matter and antimatter?
Q. I need something to get the audience's attention in the beginning. I thought about saying how the disappearing act in magic tricks may become real, not just illusions through the use of antimatter, or explaining what a particle accelerator is by comparing it to the machine used in the Iron Man 2 movie, but my teacher says I need a hook that includes dark matter, antimatter, and regular matter, since that's what the presentation is about.
Asked by Ashley - Wed May 19 17:59:57 2010 - - 10 Answers - 0 Comments
A. Start speaking with out saying a word aloud . Mouth the words then . Stop and tell everyone . You have just seen Dark matter and antimatter at work . Neither one has been seen or heard . We only know they are there . Just like seeing my mouth move and not hearing a word . . I hope you understand the idea behind this opening . Do Not over work this opening . It is only to make the people want to listen to what you say as an explanation as to . What the two forms of energy matter are .
Answered by 1 eye dog - Wed May 19 18:14:02 2010
Q. I need something to get the audience's attention in the beginning. I thought about saying how the disappearing act in magic tricks may become real, not just illusions through the use of antimatter, or explaining what a particle accelerator is by comparing it to the machine used in the Iron Man 2 movie, but my teacher says I need a hook that includes dark matter, antimatter, and regular matter, since that's what the presentation is about.
Asked by Ashley - Wed May 19 17:59:57 2010 - - 10 Answers - 0 Comments
A. Start speaking with out saying a word aloud . Mouth the words then . Stop and tell everyone . You have just seen Dark matter and antimatter at work . Neither one has been seen or heard . We only know they are there . Just like seeing my mouth move and not hearing a word . . I hope you understand the idea behind this opening . Do Not over work this opening . It is only to make the people want to listen to what you say as an explanation as to . What the two forms of energy matter are .
Answered by 1 eye dog - Wed May 19 18:14:02 2010
How much energy does antimatter create?
Q. I heard on The Universe that when a single atom of antimatter collides with an atom of regular matter, the energy released is about as much as a mere firecracker, and it is only when you get grams of antimatter that the explosions are huge. But common sense tells me that if two atoms are being destroyed, the energy released should be around the energy of two atomic explosions, or at least a fusion explosion. How much energy does an atom of antimatter release when it clashes with an atom of regular matter?
Asked by Jack Of All Trades - Tue Jul 13 20:33:51 2010 - - 4 Answers - 0 Comments
A. Whether you're dealing with nuclear reactions or matter-antimatter annihilation, the equation that relates energy to matter is Einstein's equation from special relativity, E = mc^2. What this means is that the amount of energy (E) produced is equal to the amount of mass converted (m) x the speed of light squared. The speed of light is very large (300,000,000 m/s) and squaring it makes it a whole lot bigger (90,000,000,000,000,000), so these sorts of reactions have the potential to produce a LOT of energy. Still, no matter how large the speed of light squared is, you still won't get a lot of energy if you're only converting a tiny amount of matter. In the case you're wondering about, you're only converting the mass of 2 atoms. This is… [cont.]
Answered by Mr. T. - Tue Jul 13 20:58:10 2010
Q. I heard on The Universe that when a single atom of antimatter collides with an atom of regular matter, the energy released is about as much as a mere firecracker, and it is only when you get grams of antimatter that the explosions are huge. But common sense tells me that if two atoms are being destroyed, the energy released should be around the energy of two atomic explosions, or at least a fusion explosion. How much energy does an atom of antimatter release when it clashes with an atom of regular matter?
Asked by Jack Of All Trades - Tue Jul 13 20:33:51 2010 - - 4 Answers - 0 Comments
A. Whether you're dealing with nuclear reactions or matter-antimatter annihilation, the equation that relates energy to matter is Einstein's equation from special relativity, E = mc^2. What this means is that the amount of energy (E) produced is equal to the amount of mass converted (m) x the speed of light squared. The speed of light is very large (300,000,000 m/s) and squaring it makes it a whole lot bigger (90,000,000,000,000,000), so these sorts of reactions have the potential to produce a LOT of energy. Still, no matter how large the speed of light squared is, you still won't get a lot of energy if you're only converting a tiny amount of matter. In the case you're wondering about, you're only converting the mass of 2 atoms. This is… [cont.]
Answered by Mr. T. - Tue Jul 13 20:58:10 2010
What are ALL the positives and negatives of antimatter?
Q. I have to do a case study on antimatter and i wanted to know as a detailed as possible all the possible and negatives of antimatter. Thank yu.
Asked by lilmsd44 - Thu Mar 12 15:27:56 2009 - - 1 Answers - 0 Comments
A. pos: It could be the perfect energy source, since it completely combines with matter into pure radiation-energy: E=mc neg: Extremely hard to create in reasonable amounts. It cannot be held in normal containers, because it would immediately combine with the container into pure energy. It can be held in electromagnetic fields, but only if it has certain electromagnetic properties.
Answered by Duliner - Thu Mar 12 17:55:44 2009
Q. I have to do a case study on antimatter and i wanted to know as a detailed as possible all the possible and negatives of antimatter. Thank yu.
Asked by lilmsd44 - Thu Mar 12 15:27:56 2009 - - 1 Answers - 0 Comments
A. pos: It could be the perfect energy source, since it completely combines with matter into pure radiation-energy: E=mc neg: Extremely hard to create in reasonable amounts. It cannot be held in normal containers, because it would immediately combine with the container into pure energy. It can be held in electromagnetic fields, but only if it has certain electromagnetic properties.
Answered by Duliner - Thu Mar 12 17:55:44 2009
Does proof of antimatter prove existence of parallel universes?
Q. And if so, why is our personal "antimatter" not visible to the naked eye?
Asked by Abby McNabby - Tue Jun 9 14:57:52 2009 - - 7 Answers - 0 Comments
A. Antimatter does not have a negative mass. There is no such thing. Antimatter simply has an opposite spin than matter. Raymond is correct. Both matter and antimatter were created in OUR Universe. Parallel Universes are the product of imaginations and do not exist. The entire concept began in 1953 when a scientist contemplated an atom with a half-life decay of one hour. At the end of that hour the atom could have two states: The original atomic state, or the decayed state. We could not know which until we observed and measured it. It is this which quantum theorists have twisted into being more that one universe. The key is that quantum mechanics only exist on subatomic levels - not on the scale the size of universes. Anyone who promotes… [cont.]
Answered by -:- - Tue Jun 9 15:46:45 2009
Q. And if so, why is our personal "antimatter" not visible to the naked eye?
Asked by Abby McNabby - Tue Jun 9 14:57:52 2009 - - 7 Answers - 0 Comments
A. Antimatter does not have a negative mass. There is no such thing. Antimatter simply has an opposite spin than matter. Raymond is correct. Both matter and antimatter were created in OUR Universe. Parallel Universes are the product of imaginations and do not exist. The entire concept began in 1953 when a scientist contemplated an atom with a half-life decay of one hour. At the end of that hour the atom could have two states: The original atomic state, or the decayed state. We could not know which until we observed and measured it. It is this which quantum theorists have twisted into being more that one universe. The key is that quantum mechanics only exist on subatomic levels - not on the scale the size of universes. Anyone who promotes… [cont.]
Answered by -:- - Tue Jun 9 15:46:45 2009
What countries have antimatter technology?
Q. Okay, I know antimatter is in Angels & Deamons by: Dan Brown, but it really exists. I am fairly sure that the United States has antimatter, but do other countrys?
Asked by cats_on_brodway - Sat Mar 24 10:17:56 2007 - - 10 Answers - 1 Comments
A. In answer to your direct question look for countries with particle accelerators. That's probably your most reliable source of antimatter, which is usually produced from the extremely high energy particle collisions produced by slamming together regular particles of matter like protons and such. A quick scan of a list from the University of Bonn (below) reveals the following countries: * Argentina * Belgium * Brazil * Britain * Canada * China * Denmark * France * Germany * India * Italy * Japan * Netherlands * Russia * South Africa * Spain * Sweden * Switzerland * Taiwan * USA Not every one of those accelerators are going to have the power or be configured to produce antimatter reliably, but that list is a starting point. You could also… [cont.]
Answered by Ralph S - Sat Mar 24 10:46:59 2007
Q. Okay, I know antimatter is in Angels & Deamons by: Dan Brown, but it really exists. I am fairly sure that the United States has antimatter, but do other countrys?
Asked by cats_on_brodway - Sat Mar 24 10:17:56 2007 - - 10 Answers - 1 Comments
A. In answer to your direct question look for countries with particle accelerators. That's probably your most reliable source of antimatter, which is usually produced from the extremely high energy particle collisions produced by slamming together regular particles of matter like protons and such. A quick scan of a list from the University of Bonn (below) reveals the following countries: * Argentina * Belgium * Brazil * Britain * Canada * China * Denmark * France * Germany * India * Italy * Japan * Netherlands * Russia * South Africa * Spain * Sweden * Switzerland * Taiwan * USA Not every one of those accelerators are going to have the power or be configured to produce antimatter reliably, but that list is a starting point. You could also… [cont.]
Answered by Ralph S - Sat Mar 24 10:46:59 2007
How intense would a matter antimatter explosion be relative to fusion a reaction? How do we really know this?
Q. I understand fission and fusion reactions. Are we sure that anti-matter matter reactions would create the intense energy I have read about? Have there been any real world tests. I was reading articles on the use of antimatter in a sail type ship. I could see how a nuclear reaction could propell these engines at high speed, but the I don't understand why an anti-matter explosion would yield so much more energy. I would think fission or fusion reaction would be more controllable and produce enough thrust. And please. No trekkies or scifi fans preaching what ST Cannon.
Asked by bjmarchini - Mon Sep 25 18:54:59 2006 - - 4 Answers - 0 Comments
A. Matter-antimatter reactions convert 100% of the mass to energy. Fusion reactions convert about 4% of the mass to energy. And we know this because particle accelerators use matter-antimatter reactions all the time.
Answered by stevewbcanada - Mon Sep 25 19:18:25 2006
Q. I understand fission and fusion reactions. Are we sure that anti-matter matter reactions would create the intense energy I have read about? Have there been any real world tests. I was reading articles on the use of antimatter in a sail type ship. I could see how a nuclear reaction could propell these engines at high speed, but the I don't understand why an anti-matter explosion would yield so much more energy. I would think fission or fusion reaction would be more controllable and produce enough thrust. And please. No trekkies or scifi fans preaching what ST Cannon.
Asked by bjmarchini - Mon Sep 25 18:54:59 2006 - - 4 Answers - 0 Comments
A. Matter-antimatter reactions convert 100% of the mass to energy. Fusion reactions convert about 4% of the mass to energy. And we know this because particle accelerators use matter-antimatter reactions all the time.
Answered by stevewbcanada - Mon Sep 25 19:18:25 2006
What are some characteristics of antimatter?
Q. I read about antimatter in a book, but I don't know much about it. Thanks in advance if you could tell me certain characteristics of anti-matters. .
Asked by chen13386882831 - Sat Jun 26 01:59:28 2010 - - 2 Answers - 0 Comments
A. Antimatter acts like regular matter in reverse time. In my Fractal Foam Model of Universes, I speculate that our universe may have begun in coexistence with a similar antimatter universe. They began at the same scale, but from our point of view the antimatter universe shrunk while our universe expanded. From the anti-matter universe's point of view, that moment in time was the end of an epoch in which it expanded and our universe shrank. Now, that antimatter universe, from our point of view, has shrunk to about 10^-60 of the scale of our own universe, and it is now the ether of our universe.
Answered by Philip J - Sat Jun 26 02:57:21 2010
Q. I read about antimatter in a book, but I don't know much about it. Thanks in advance if you could tell me certain characteristics of anti-matters. .
Asked by chen13386882831 - Sat Jun 26 01:59:28 2010 - - 2 Answers - 0 Comments
A. Antimatter acts like regular matter in reverse time. In my Fractal Foam Model of Universes, I speculate that our universe may have begun in coexistence with a similar antimatter universe. They began at the same scale, but from our point of view the antimatter universe shrunk while our universe expanded. From the anti-matter universe's point of view, that moment in time was the end of an epoch in which it expanded and our universe shrank. Now, that antimatter universe, from our point of view, has shrunk to about 10^-60 of the scale of our own universe, and it is now the ether of our universe.
Answered by Philip J - Sat Jun 26 02:57:21 2010
Why is it predicted that the universe has more matter than antimatter?
Q. The universe at a subatomic has a basic symetry to it (e.g electrons and protons) with equal amounts of each opposite particle (e.g quarks) so why doesn't this apply to matter and antimatter? Why don't they exist in equal amounts in order to maintain cosmic balance? If they do exist in equal amounts why didn't they just annihilate each other at the begining of the universe when they were in relatively close proximity?
Asked by mangi ps - Thu Apr 19 09:49:22 2007 - - 5 Answers - 0 Comments
A. There are strong evidences that the universe is made of matter with very few antimatter. It is believed that particles and anti-particles were equally numerous in the early universe, but the former came to dominate as the universe cooled. Baryogenesis is the hypothetical physical process, that generated an asymmetry between baryons and anti-baryons in the very early universe. Soviet physicist (and dissident) Andrei Sakharov pointed out three conditions necessary for the asymmetry to develop: The universe must be out of equilibrium - This is a natural consequence of the expansion of the universe. In this situation the particles and their corresponding antiparticles do not achieve thermal equilibrium due to rapid expansion decreasing the… [cont.]
Answered by unknown - Thu Apr 19 10:13:10 2007
Q. The universe at a subatomic has a basic symetry to it (e.g electrons and protons) with equal amounts of each opposite particle (e.g quarks) so why doesn't this apply to matter and antimatter? Why don't they exist in equal amounts in order to maintain cosmic balance? If they do exist in equal amounts why didn't they just annihilate each other at the begining of the universe when they were in relatively close proximity?
Asked by mangi ps - Thu Apr 19 09:49:22 2007 - - 5 Answers - 0 Comments
A. There are strong evidences that the universe is made of matter with very few antimatter. It is believed that particles and anti-particles were equally numerous in the early universe, but the former came to dominate as the universe cooled. Baryogenesis is the hypothetical physical process, that generated an asymmetry between baryons and anti-baryons in the very early universe. Soviet physicist (and dissident) Andrei Sakharov pointed out three conditions necessary for the asymmetry to develop: The universe must be out of equilibrium - This is a natural consequence of the expansion of the universe. In this situation the particles and their corresponding antiparticles do not achieve thermal equilibrium due to rapid expansion decreasing the… [cont.]
Answered by unknown - Thu Apr 19 10:13:10 2007
In the aftermath of the Big Bang, why was matter not canceled out by antimatter?
Q. Why is this world created by matter and not antimatter?
Asked by i<3m8ing - Sun Jun 7 01:10:44 2009 - - 6 Answers - 0 Comments
A. The answer to your question depends on whom you ask. Over the past two years I have been advancing a new model that attempts to answer this question. The name of this modern view of established data is called the "Dominium model." First let me tell you the old/standard way to answer your question. The old view is to believe that all the antimatter "vanished." Essentially the idea is that antimatter is some how feeble, weak, and short-lived compared to matter. These attribute [i]had[/i] to be true because if antimatter were stable, then we'd expect to see annihilation events in the visible record (but we definitely don't see that.) There are many problems with this notion. The worst problem is the known Massive Antimatter Cloud (MAC)… [cont.]
Answered by Hasanuddin - Mon Jun 8 07:38:35 2009
Q. Why is this world created by matter and not antimatter?
Asked by i<3m8ing - Sun Jun 7 01:10:44 2009 - - 6 Answers - 0 Comments
A. The answer to your question depends on whom you ask. Over the past two years I have been advancing a new model that attempts to answer this question. The name of this modern view of established data is called the "Dominium model." First let me tell you the old/standard way to answer your question. The old view is to believe that all the antimatter "vanished." Essentially the idea is that antimatter is some how feeble, weak, and short-lived compared to matter. These attribute [i]had[/i] to be true because if antimatter were stable, then we'd expect to see annihilation events in the visible record (but we definitely don't see that.) There are many problems with this notion. The worst problem is the known Massive Antimatter Cloud (MAC)… [cont.]
Answered by Hasanuddin - Mon Jun 8 07:38:35 2009
Ive been doing calculations about antimatter, need some help?
Q. One can calculate the quantity of energy released when annihilating matter and antimatter using E=m*c^2. However, when applied to its capabilities to propel a hypothetical space ship to relativistic speeds does one need to divide the energy in half to take into account the energy of the fuel being propelled out the back of the ship?
Asked by Spazzy- McGee - Tue Jul 1 20:11:56 2008 - - 4 Answers - 0 Comments
A. The first thing thats wrong is that the antimatter's energy would not be E=mc . The original mass equivalence equation is E= mc , where gamma is the Lorentz Factor. Normally this part of the equation is left out since it only has a noticeable difference at relativistic speeds. But in your case, you would need to include this. E=mc / 1-v /c As for thrust, you would use the equation T=v*dm/dt where t is the thrust, v is the velocity, dm/dt is the rate of change of mass with respect to time, or the rate the fuel "burns"
Answered by Chris S - Tue Jul 1 20:20:37 2008
Q. One can calculate the quantity of energy released when annihilating matter and antimatter using E=m*c^2. However, when applied to its capabilities to propel a hypothetical space ship to relativistic speeds does one need to divide the energy in half to take into account the energy of the fuel being propelled out the back of the ship?
Asked by Spazzy- McGee - Tue Jul 1 20:11:56 2008 - - 4 Answers - 0 Comments
A. The first thing thats wrong is that the antimatter's energy would not be E=mc . The original mass equivalence equation is E= mc , where gamma is the Lorentz Factor. Normally this part of the equation is left out since it only has a noticeable difference at relativistic speeds. But in your case, you would need to include this. E=mc / 1-v /c As for thrust, you would use the equation T=v*dm/dt where t is the thrust, v is the velocity, dm/dt is the rate of change of mass with respect to time, or the rate the fuel "burns"
Answered by Chris S - Tue Jul 1 20:20:37 2008
Can a black hole be destroyed by antimatter?
Q. Are there black holes made up of antimatter?
Asked by Karema Midnight - Wed May 27 21:24:12 2009 - - 7 Answers - 0 Comments
A. Only if it go's it upside down
Answered by happy - Wed May 27 21:49:50 2009
Q. Are there black holes made up of antimatter?
Asked by Karema Midnight - Wed May 27 21:24:12 2009 - - 7 Answers - 0 Comments
A. Only if it go's it upside down
Answered by happy - Wed May 27 21:49:50 2009
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Comic Book Resources "He's got an axe to grind" against Sinestro for "all the baggage he brings" to the antimatter universe of Qward. Prado said it was "very difficult" to ...
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