Figure (b) shows the size vs. age graph of our universe. One can consider it as an x-t graph and read from it the expansion rate of the universe (velocity) and how the rate changes with time (acceleration). Are the statements below correct? (And explain)
A. The universe is always expanding.
B. 10 billion years ago, the expansion rate of the universe was increasing.
C. The universe will be expanding slower 10 billion years later
than it is now.
Homework Answers
A). Correct , Universe is always expending because distance is increasing with time.
B). Incorrect, Expansion rate is given by slope of this graph , the expansion rate ago 10 years was more then now.
C) Incorrect , The slope 10 Billion year later is more then now so after 10 billion years it expends faster.
thanks
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Figure (b) shows the size vs. age graph of our universe. One can consider it as...
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