The presence of dark energy affects to the way the Universe is expanding. Select one: True False
Q: What is the evidence that dark matter exists?
A:
Q: Cite an evidence that we are living in an expanding universe.
A: The universe we are living in is expanding. This is evident from Hubble's observations in 1929. A…
Q: As the Universe becomes older, what effect will that have on a slope of the Hubble's diagram: It…
A: Doppler effect in light is the change in frequency of light observed by the observer when the source…
Q: How do physicists measure the expansion rate of the universe?
A: How do physicists measure the expansion rate of the universe?
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: Gravity played an important role in the formation of solar systems, stars, and galaxies. What role…
A:
Q: Astronomers have measured the age of the Universe to be about 14 billion years. Explain how this age…
A: Astronomers estimated that the age of universe is about 12 to 14 billion years. There are two…
Q: What has occurred after the Big Bang? Objects in the universe have reached a critical density.…
A: The big bang is how astronomers describe the way the universe started. It is the vision that the…
Q: Calculate the critical density of our universe.
A: Our universe is expanding and critical density is defined as the average density of matter that is…
Q: How do black holes form and what is their effect on the surrounding universe?
A: One of the strangest things in the universe is Blackholes. Blackholes are highly massive and the…
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: Calculate the age of the universe when its temperature was 10¹¹ K.
A: The universe was once part of a singularity of very high density and temperature. All the forces and…
Q: Describe some of the characteristics of the universe that are explained by the standard Big Bang…
A: Given, Big Bang theory of universe
Q: Explain the term Gravitational lensing?
A: Gravitational lensing is the term that is used to describe the bending and distortion in the path of…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter.
Q: Define the term 'The Nature of Dark Matter' this term is from physics and how does it work.
A: The term 'The Nature of Dark Matter' refers to the characteristics and properties of a hypothetical…
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: How do we measure Dark Matter?
A: Two methods were used by DES scientists to measure dark matter. Firstly, maps of galaxy positions as…
Q: How do gamma-ray bursts provide insights into the most energetic events in the universe?
A: Gamma-ray bursts (GRBs) are extremely energetic explosions that have been observed in distant…
Q: Does the law of conservation of mass conflict with a famous theory such as the theory of expansion…
A: First of all we will have to know that alone mass is not conserved and alone energy is not…
Q: Is the universe open or closed?
A: the universe as "closed," "open," or "flat," meant that the density of the universe was either so…
Q: Which of the following predictions of the Big Bang indicates that the universe now is around 2.73…
A: The cosmic microwave background radiation. As a result of the expansion of the Universe, it was…
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: Based on Figure 1 below, which galaxies are moving away from us the fastest? Velocity (km/sec) 2000…
A: first option is correct
Q: Estimate the temperature of the universe when it was approximately 1 minutes old
A: Our universe is thought to be formed from a singularity of infinite density and temperature. It…
Q: What was the lowest temperature for photons to be able to produce 0 particles in the early universe?…
A: Given: kT=mc2
Q: If the Hubble's constant was 100 km/s/Mpc instead of 70 km/s/Mpc what would be the estimated age of…
A: It was observed that the galaxies were moving away from us. Edwin Hubble calculated their recession…
Q: Helium is common element in the Universe. True/False
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: If the forces acting on a moving object are balanced, what will the object do? If the forces acting…
A: Force is measured in Newton(N)
Q: The rate of expansion of the universe is __________ a) Decelerating b) Accelerating c) Constant…
A: B
Q: There exists an element visible in the spectrum of galaxies that shows the following spectra when…
A: Introduction: The Doppler effect refers to the apparent shift in the wavelength of a wave when there…
Q: Calculate the age of the universe when the temperature was 10¹ K.
A: The age of the universe when the temperature was 1013 K. Given, TemperatureT=1013 K
Q: Explain why the speed of light is the maximum attainable
A: Hi , please find the answer
Q: About how long after the Big Bang singularity did nuclei such as deuterium and helium-4 form? Group…
A: We know that at the time of the Big Bang, the plasma was so dense and hot that nucleons could not…
Q: Explain how astronomers determined that the universe is expanding.
A: In universe there are millions of stars. These stars are always moving towards Earth or away from…
Q: What is the concept of dark matter, and what evidence suggests its existence?
A: Introduction:The predictions of the general theory of relativity fall short in explaining the…
Q: What is negatively curved universe?
A: A surface has negative curvature at a point if the surface curves away from the tangent plane in two…
Q: Explain why does scientists believed that the big bang theory is an expansion not an explosion
A:
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