Why is dark matter a problem?
Q: What is a black body? On what factors does the radiation emitted from it depend?
A:
Q: The cosmic microwave background consists of: huge clouds of dark matter interspersed with equally…
A: Cosmic microwave background also known relic radiation. Cosmic microwave background is kind of…
Q: Which Feynman diagram could show an electron emitting a photon. ?
A:
Q: How does the lighthouse model explain pulsars? in two sentences.
A: Pulsars are spinning neutron stars that emit beams of radiation from their magnetic poles
Q: Which factor has slowed down the expansion of the universe?
A: The expansion of the universe has slowed down because the object pull each other towards themselves…
Q: What is the Lorentz force?
A: Lorentz force
Q: What would be the Hubble constant if the universe were 18 billion years old?
A: The age of universe is given as, t = 18 billion years (or) t = 18×109 years TO DETERMINE: The…
Q: What are cosmic rays primarily composed of?
A: Cosmic rays are energetic, subatomic particles that arrive from outside the Earth's atmosphere.
Q: Is antimatter, dark matter, dark energy, and degenerate matter all t
A: Antimatter, dark matter ,dark energy and degenerate matter are not all the same thin. Antimatter:…
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: 7:40 M l 89%É 3:45 * E F all 66% A edugen.wileyplus.com/edugen/ WileyPLUS MywyPus I Hlp I Cartact…
A: (given) Mass (m) of the rolller coaster = 1200 kg Speed of the wheel = 7.6 m/s Radius of the hill =…
Q: write a note on Feynman's diagram in semi-classical physics?
A: Feynman's diagram It is a graphical method to represent of the elementary particle interaction. It…
Q: What do you mean by dark matter?
A: Dark matter is composed of particles that do not absorb, reflect, or emit light, so they cannot be…
Q: Is the event horizon of a black hole the actual physical surface of the object?
A:
Q: Will the Higgs-Boson particle create a black hole and destroy the Earth
A: No, it will not create a black hole and certainly not big enough to destroy the earth.
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: A boat moves through the water at a constant velocity of 7.8 m/s with two forces acting on it. One…
A: Forward push by motor = 2.21×103 N Constant velocity = v = 7.8 m/s Part A. Since boat is moving with…
Q: How much of the universe appears to be the normal ordinary matter? Group of answer choices 50% 95%…
A: CONCEPT: Among the whole universe, only a small part is visible and the remaining part is…
Q: Dark energy
A: Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving…
Q: Which galaxies are moving the fastest away from us?
A: Our nearest galaxy is Milky way.
Q: What is the strongest piece of evidence for the existence of dark matter? O As stars die, they…
A: The strongest piece of evidence for the existence of the dark matter is "The orbital speed of the…
Q: Which of these symbols on a Feynman diagram is a gluon?
A:
Q: Why haven't we detected any Primordial black holes?
A: Primordial black holes or PBH are black holes that formed soon after the birth of the universe. The…
Q: How does a gravitational red-shift differ from a Doppler red shift?
A:
Q: Dark matter experiments are built underground to avoid detecting which type of particle? Group of…
A: In order to reduce the noise level signals caused by Cosmic Rays at Earth's surface, dark matter…
Q: Is Hubble's law applicable in another planet or galaxy?
A: In this question we have to answer whether the Hubble's Law is applicable in another planet or…
Q: How black holes made us?
A:
Q: Make a web search and explain in your own words dark energy and dark matter ( in astronomy )
A: Our universe is dominated by mysterious and invisible form of matter and energy. Universe consist…
Q: how many Galaxy are there in all?
A: The huge collection of gas, dust, and billions of stars and their stars, which are held together by…
Q: What caused the explosion of Big bang?
A: Given What caused the explosion of the Big bang, as following below.
Q: Let us consider the case shown in the figure. A charged particle moving in a circular path on a…
A: Here B→ and motion are ⊥r to each other & force required for motion comes from B→ field itself
Q: Why is the discovery of dark matter and dark energy so important to our understanding of the…
A: Dark matter and dark energy are one of the mysteries of the universe that are not fully understood.…
Q: Light is incident from medium 1 to medium 2 at Brewster's angle equal to 55.4°, and transmitted…
A: Given:- θ1 = θB = 55.4°εr2 = 34θB = tan-1εr2εr1
Q: State Stefan-Boltzmann law. Give its value in SI units.
A: According to Stefan-Boltzmann law, the total heat energy emitted/radiated per unit time, per unit…
Q: The presence of dark energy affects to the way the Universe is expanding. Select one: True False
A: Dark energy is a hypothetical form of energy which acts opposite to gravity. It occupies the…
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: what is Feynman's diagram in detail in semi-classical physics?
A: Feynman diagrams were invented in 1948 to help physicists find their way out of a morass of…
Q: 7. A plane circular loop of conducting wire of radius r = possesses N = 15 turns is placed in a…
A: 7) circular loop radius, r=10 cm Number of turnings N=15 The angle the magnetic field makes with the…
Q: What is a super force?
A: Super force is defined as a single force of which electromagnetism, the weak force, the strong…
Why is dark matter a problem?
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