TRUE OR FALSE: Current mass estimates and deceleration rates tell us that our universe is closed
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A: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
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Q: What is the evidence that the universe was very uniform during its first 400,000 years?
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A: Given: kT=mc2
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Q: Calculate the age of the universe when the temperature was 10¹ K.
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TRUE OR FALSE: Current mass estimates and deceleration rates tell us that our universe is closed
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- With the aid of one or more diagram, explain how observations of the CMB can be used to determine whether or not space is flat, positively curved or negatively curved. Describe two pieces of evidence that have led to the suggestion that the Universe contains Dark Energy.TRUE OR FALSE: In an unbounded universe, all hydrogen will be used up in about a trillion yearsWhat is the CMB? Group of answer choices A dense region of 4.5 million stars. A large star of 4.5 million solar masses. The cosmic microwave background of photons left over and cooled down from when the universe became transparent 300,000 years after the Big Bang. The space curvature of the universe
- For the graph shown above, a) what quantity would you label the y-axis with if the distance is between galaxies and the Earth? Explain your answer. Think through what we know is happening, motion-wise, out there in the galaxy. b) Also explain why you think there are dots and a solid line, on the graph.What are a couple of scientific speculations that describe the future of our universe?If you observe light emitted from a distance object when the cosmic background temperature was Tz=54K, what is the redshift z of that light? At that redshift, what was the diameter Dz of the universe at that time compared to the diameter of today's universe D0?