What could be some consequences if there was as much antimatter as matter in the universe?
What could be some consequences if there was as much antimatter as matter in the universe?
Homework Answers
If there was as much antimatter as matter in the universe, they will annihilate one another in a fierce burst of energy. Everything will be destroyed and the universe will just contain the leftover energy.
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What could be some consequences if there was as much antimatter
as matter in the universe?
Suppose the difference between matter and antimatter in the early universe were 1 part in 108 instead of 1 part in 109. (a.) Evaluate the temperature at which deuterium begins to form. (b.) At what ag...
Suppose the difference between matter and antimatter in the early universe were 1 part in 108 instead of 1 part in 109. (a.) Evaluate the temperature at which deuterium begins to form. (b.) At what age does this occur? (c.) Evaluate the temperature and the corresponding time of radiation decoupling (when hydrogen atoms form).
When antimatter is mixed with matter, they annihilate to energy according to E = mc2. Assuming...
When antimatter is mixed with matter, they annihilate to energy according to E = mc2. Assuming 3.5 kg of antimatter mix with matter. What’s the approximate total amount of energy is released in kilotons of TNT? (Note: 20 kiloton TNT = 8.4 × 1013 J). .A 70.0 megatons B 0.3 kilotons C 140.0 megatons D 1.4 megatons E 28.0 kilotons
What is the evidence that a large proportion of the mass of the universe is in the form of dark matter? fast In 1933 astronomers noticed that galaxies at the edge of the Coma cluster of galaxies were...
What is the evidence that a large proportion of the mass of the universe is in the form of dark matter? fast In 1933 astronomers noticed that galaxies at the edge of the Coma cluster of galaxies were moving much too the cluster to remain in the cluster, given the amount of mass that was observable in slow not observable observable 10 90 50 This led to the suggestion that some "dark" matter that was the 1970s many observations have...
b. Consider a hypothetical universe similar to our own except that there was no imbalance between...
b. Consider a hypothetical universe similar to our own except that there was no imbalance between matter and antimatter. I. At what time would baryons disappear from this hypothetical universe? Briefly explain your answer. ii. At what time would the last scattering of photons occur in this hypothetical universe? How does this compare with the time of last scattering in our Universe?
Suppose you had as your personal energy source a quantity of matter and antimatter, which, when...
Suppose you had as your personal energy source a quantity of matter and antimatter, which, when brought together, annihilated itself, that is, completely converted to radiant energy. What mass of fuel would be required in a lifetime of 81.8 years to provide power at a steady rate of 1.01 kW?
Suppose you had as your personal energy source a quantity of matter and antimatter, which, when...
Suppose you had as your personal energy source a quantity of matter and antimatter, which, when brought together, annihilated itself, that is, completely converted to radiant energy. What mass of fuel would be required in a lifetime of 84.1 years to provide power at a steady rate of 1.08 kW
Suppose you had as your personal energy source a quantity of matter and antimatter, which, when...
Suppose you had as your personal energy source a quantity of matter and antimatter, which, when brought together, annihilated itself, that is, completely converted to radiant energy. What mass of fuel would be required in a lifetime of 87.9 years to provide power at a steady rate of 1.11 kW?
2. The present-day acceleration of the Universe could also be due to the existence of a false vac...
2. The present-day acceleration of the Universe could also be due to the existence of a false vacuum which will eventually decay. Assume that the energy of the false vacuum is εΛ 0.73 ε00, the energy of m atter is e,n,0 0.27 Eco, the Universe is flat, and e,0 5200 MeV m-3 a) What is the value of the Hubble parameter once completely dominates the expan- sion? Express it in units of km s-1 Mpc-1 and in units of to...
n of a matter-antimatter pair into energy is known as pair annihilation T Moseley showed that...
n of a matter-antimatter pair into energy is known as pair annihilation T Moseley showed that the equation relating energy to the principle quantum number, n, for hydrogen- like atoms correctly predicts the n energy levels of atoms with up to 79 electrons F T F Hund's Rule has no exceptions T F The Pauli Exclusion Principle has no exceptions T F Magnitude of electron rotational angular momentum, S), can be changed in a strong magnetic field
n of a matter-antimatter pair into energy is known as pair annihilation T Moseley showed that...
n of a matter-antimatter pair into energy is known as pair annihilation T Moseley showed that the equation relating energy to the principle quantum number, n, for hydrogen- like atoms correctly predicts the n energy levels of atoms with up to 79 electrons Hund's Rule has no exceptions The Pauli Exclusion Principle has no exceptions Magnitude ofelectron rotational angu F T F T F T F lar momentum, |S], can be changed in a strong magnetic field
What is the evidence that a large proportion of the mass of the universe is in the form of dark matter? fast In 1933 astronomers noticed that galaxies at the edge of the Coma cluster of galaxies were moving much too the cluster to remain in the cluster, given the amount of mass that was observable in slow not observable observable 10 90 50 This led to the suggestion that some "dark" matter that was the 1970s many observations have...
b. Consider a hypothetical universe similar to our own except that there was no imbalance between matter and antimatter. I. At what time would baryons disappear from this hypothetical universe? Briefly explain your answer. ii. At what time would the last scattering of photons occur in this hypothetical universe? How does this compare with the time of last scattering in our Universe?
2. The present-day acceleration of the Universe could also be due to the existence of a false vacuum which will eventually decay. Assume that the energy of the false vacuum is εΛ 0.73 ε00, the energy of m atter is e,n,0 0.27 Eco, the Universe is flat, and e,0 5200 MeV m-3 a) What is the value of the Hubble parameter once completely dominates the expan- sion? Express it in units of km s-1 Mpc-1 and in units of to...
n of a matter-antimatter pair into energy is known as pair annihilation T Moseley showed that the equation relating energy to the principle quantum number, n, for hydrogen- like atoms correctly predicts the n energy levels of atoms with up to 79 electrons F T F Hund's Rule has no exceptions T F The Pauli Exclusion Principle has no exceptions T F Magnitude of electron rotational angular momentum, S), can be changed in a strong magnetic field
n of a matter-antimatter pair into energy is known as pair annihilation T Moseley showed that the equation relating energy to the principle quantum number, n, for hydrogen- like atoms correctly predicts the n energy levels of atoms with up to 79 electrons Hund's Rule has no exceptions The Pauli Exclusion Principle has no exceptions Magnitude ofelectron rotational angu F T F T F T F lar momentum, |S], can be changed in a strong magnetic field
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