Answered: Assume a flat… | bartleby

Related questions

Question

Assume a flat Friedmann-Robertson-Walker universe.
Calculate the redshift z at which the temperature of the CMB was T = 10 T0, where T0 is the
temperature of the CMB today. Assuming the universe was matter dominated throughout its
evolution, calculate the time at which T = 10 T0 in Gigayears.

Expert Solution

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

QUESTION 1 The Biological Species Concept states that If organisms have greater than 99% DNA similarity, they are the same species If organisms have the same number of chromosomes, they are the same species If organisms can breed together and produce fertile offspring, they are members of the same species Organisms with a high degree of DNA similarity are closely related
True or false: The "Miller Urey" experiment that found heating and cooling gases such as H20 and CH4 were able to produce small organic molecules. This proved that life originated on Earth through natural mechanisms.
Beyond the usual carbon based life, and proposed life based on silicon, what other compound is interesting in SETI? Germanium based life Boron based life Plasma based life Ammonia based life Weak force life
Presumably in the first billion years of the Earth’s existence, there were many chemical reactions occurring and some of these reactions formed large quantities of organic molecules that accumulated in the early oceans, lakes, etc. This is often referred to as the “primordial ooze” or “prebiotic soup.” The conditions of the early Earth changed so new organic molecules weren’t being made, however many of the molecules in the primordial ooze reacted together forming more complex molecules and even, after millions of years, primitive cells formed. For energy, these primitive cells could metabolize some of the remaining organic molecules and “eat” other cells. At some point millions of years later, photosynthetic bacteria developed, but note that these bacteria did not give off O2. Then more millions of years later, the Cyanobacteria (the Blue-Green Bacteria) evolved and these organisms could photosynthesize and they gave off O2. a) With the above scenario in mind, discuss the…
Please answer all
Immanuel Kant suggested, in his Investigation of the Question Whether the Earth Has Undergone Any Change in Its Axial Rotation (1754), that, according to Newtonian physics, in the distant past: the Earth had a longer day than 365 hours, but a year equal to 365 of our modern 24-hour days the Earth had a shorter year than 365 of our modern 24-hour days, but a longer day than 24 hours the Earth had a shorter day than 24 hours, but a year equal to 365 of our modern 24-hour days the Earth had a longer day than 24 hours, but a longer year than 365 of our modern 24-hour days the Earth had a year equal to 365 of our modern 24-hour days, but a longer day than 24 hours
Suppose you had a sample that contained equal concentrations (in unit of mg/ml) of DNA and a protein, e.g. BSA. Sketch the absorption spectrum you would expect to see in the region from 240 to 300 nm.
use the values calculated (picture 2) to solve picture 1
How would I create a bar graph using the Hardy -Weinberg Equation data ?
Describe the two principal factors that in combination determine whether an exoplanet is likely to sustain liquid water on its surface and how this criterion relates to the Goldilocks principle in the search for habitable exoplanets.
Marine biology question 6) Just before the beginning of the fishing season you capture, tag, and release 4500 adult cod (Gadus morhua) from the Barents Sea. At the end of the season you learn from the United Kingdom Trawler Fleet working these waters that a total 195,500 fish were taken in the season, of which 1,950 fish were found bearing your tag. From these data calculate the “fishing ratio”, also known as the rate of exploitation, of this fishery. What was the size of the cod population actually available to this fishery at the beginning of the season?
Select one of the four forces of evoultion. Provide a basic defintion of your selected force and review one exmaple. Finally, explain how this force drives evolution and causes evolutionary change over time.

SEE MORE QUESTIONS