When do cosmologists think the universe began?
Q: We didn't specifically discuss this in class but the first stars to form from the cosmic microwave…
A:
Q: What is dark matter ?
A: A type of matter hypothesized to account for a large type of mass in the universe it's the dark…
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: Scientific models are often built in stages or layers, starting with a single idea. Which idea…
A: The Big Bang is a cosmological model of the observable universe that describes how the cosmos…
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The universe was formed from a big explosion called Big Bang. In the beginning, everything was…
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: What is the densest subsatnce in the universe?
A: At a modest temperature and pressure the most densest element on Earth surface is Osmium.
Q: What do you think of the statement: The universe has no center and no edge (or boundary)?
A: The description of the universe that it has no centre and no edge actually tells a lot about the…
Q: What is the only thing that remains constant all over the universe
A: A constant is a quantity that is conserved with time. And and Invariant quantity is something that…
Q: What is the the steady-state theory of the universe, and why was it abandoned? What theory do we…
A: A per the Steady-State theory, the universe is always expanding but it is maintaining a constant…
Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…
A: Here we arrange these things on the bases of their size in increasing order.
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The evidence of the uniform nature is explained by particle physics. Before the formation of the…
Q: Calculate the age of the universe for the following Hubble's constant, 200 1... - N (d) 20 km/s/Mpc
A: As per Hubble's law, the universe is expanding. If we assume that the expansion's apparent velocity…
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: Compare the values of the number of grains of sand in all earth’s beaches with the number of stars…
A:
Q: D
A: Solution: The four model are as follows, Critical Accelerating Coasting Recollapsing The present…
Q: After the Big Bang the Universe expanded and cooled. What was the temperature of the Universe when…
A: All of the universe's matter and energy were once concentrated in a singularity with infinite…
When do cosmologists think the universe began?
Step by step
Solved in 2 steps
- What evidence can you cite that the expansion of the universe is accelerating?To what extent do astronomers have the ability to see into the history of the universe?In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)
- Place all of the following in order from earliest to the most recent: Dark energy begins acceleration of the expansion of the universe You study for your final in astronomy Last scattering of the Cosmic Microwave Background Radiation First stars and galaxies form Big Bang Universe becomes transparent (no longer opaque) aka photon decoupling time Inflationary Epoch Formation of first complex elements (hydrogen isotopes, helium & lithium)What are a couple of scientific speculations that describe the future of our universe?