Does the negative mass of antimatter mean that it's gravitationally repelled from stars?
Q: Hubble’s law suggests that the recession speed of a distant galaxy depends linearly on its distance…
A: Hubble law is the observation in physical cosmology that galaxies are moving away from the…
Q: About how much of the universe is believed to be composed of dark energy? O 68-73% O 10-12% O 4-5% O…
A: We know very less about the universe . and said universe is expand . the maximum thing is unknown…
Q: What is the reason behind the creation of the Large Hadron Collider?
A: Required : What is the reason behind the creation of the Large Hadron Collider?
Q: I:28) What was the density of energy released of fusing 25% of all the hydrogen in the universe into…
A:
Q: critical density
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Q: Cosmological redshift caused by the expansion of space itself is not quite the same as the redshift…
A: Doppler effect.Cosmological redshift is indeed distinct, arising from the expansion of space, unlike…
Q: Why are heavy elements (atomic number >26) typically only formed in supernovas or collisions of…
A: Heavier elements formed in supernovas and collision of stars
Q: What would the universe look like if there was complete cemetery between matter and antimatter?
A: What would the universe look like if there was complete cemetery between matter and antimatter?
Q: Assume a flat Friedmann-Robertson-Walker universe, and that the density parameters for matter…
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Q: Is there any difference between antimatter, dark-matter, dark energy and degenerate matter?
A: Antimatter: It is like a simple matter. It also reflects the light. For example, positron is the…
Q: In the early universe, the formation of л* or лº was through thermal interactions. What is the…
A: As mass-energy equivalence says that mass and energy are the same, mass can be converted into energy…
Q: If neutrino oscillations do occur, will they violate conservation of the various lepton family…
A: The total lepton number is conserved in nature.
Q: What is the wavelength of the most energetic photon that can be emitted from a muonic atom with Z=1?
A: The electron on gaining energy becomes excited. They then jump from lower orbit to higher orbit. It…
Q: What causes cosmic microwave background energy?
A: The cosmic microwave background (CMB) is believed to be the leftover radiation from the Big Bang. As…
Q: b) The cosmic microwave background dates to a time when the universe was -380,000 years old, or to a…
A: Given: 380000 years ago Tr=3000 Kz=1100
Q: List the flavors of quark.
A: A quark is a small particle which makes neutrons and protons and gluons held them together.
Q: How can we apply the knowledge that was produced by the Large Hadron Collider to our current…
A: In physics, a collider is a type of particle accelerator that is used to study the properties of…
Q: Describe the Feynman diagram for the exchange of a between a proton and a neutron.
A: When a proton decays into a neutron then an exchange particle is W+ And the other products are…
Q: An electron jumps from n=3 to n=2 in a hydrogen atom in a distant galaxy, emitting light. If we…
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Q: What was the approximate number density of CMB photons when the CMB had a higher temperature of 507…
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Q: Robert Dicke assumed the Cosmic Microwave Background Radiation temperature to be: a) 3 degrees K…
A: Robert Dicke assumed the Cosmic Microwave Background Radiation temperature to be: ANSWER IS OPTION A…
Q: If a proton and an antiproton, both at rest, were to completely annihilate each other, how much…
A: Answer - 3 x 10-10 J
Q: why there are three generations of quarks and leptons
A: why there are three generations of quarks and leptons
Q: Why is the cosmic microwave background radiation evidence for a hot Big Bang?
A: The cosmic microwave background radiation (CMBR), is a high wavelength electromagnetic radiation,…
Q: Today we view the collisions between high-energy particles, why? please explain
A: we view the collisions between high-energy particles beacuse of the following reasons :-
Q: How can the mass be converted into energy?
A: According to Einstein's equation for mass equivalence, the mass can be converted into an equal…
Q: What are the frequencies of two photons produced when a proton and antiproton annihilate each other…
A: Mass of electron=mass of antiproton =1.67×10-27kg=1amu Energy equivalent to 1amu=931MeV Energy…
Q: Q-22: What is meant by term matter waves? Why we can not observe it in our daily life? (**)
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Q: a process wherein two photons interact together to form a matter and its corresponding anti-matter
A: In 1932, Anderson in his experiment with cloud chamber observed that when a nucleus absorbs…
Q: What has happened to the CMBR since the Big Bang?
A: Before the big bang, the universe's temperature was very high compared to the present scenario.…
Q: Why couldn't atomic nuclei exist when the age of the universe was less than 2 minutes?
A: As per Hubble's theory, the universe is expanding, this means at some point in time there were…
Q: A 5 micron droplet of water is being carried in standard air toward a 500 micron drop of water at a…
A: Given, Let the two water drops are A and B and their velocities va and vb. If two drops are…
Q: Most of our universe is now thought to be made from Dark energy Dark matter Normal matter O…
A: Universe in which we live is made of different matters and energy. After the Hubble gave the theory…
Q: How can we apply the knowledge that was produced by the Large Hadron Collider to our current…
A: There are various elementary particles present and also their antiparticles. We have 4 fundamental…
Q: If some unknown cause of red shift—such as light becoming “tired” from traveling long distances…
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Q: consider the quarks inside of a hadron. In a proton at one certain moment, the down quark has a…
A: The answer is one is red and one is green Explanation: one is red and one is greenIf the down quark…
Q: Why don’t we notice length contraction in everyday life?
A: This is a question from relativity. Length Contraction: This is the phenomenon in which a moving…
Q: An electron and a positron meet and completely annihilate, creating two photons, each with the same…
A: Given data The number of photons is n=2 The completely annihilate process is as shown below,…
Does the negative mass of antimatter mean that it's gravitationally repelled from stars?
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