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pls answer part 5 with true or false for the three choices A. The position is ch

ID: 1655713 • Letter: P

Question

pls answer part 5 with true or false for the three choices

A. The position is changing with time. B. The instantaneous velocity is changing with time. (b) C. The instantaneous acceleration is changing with time. (5) Figure (b) shows the size-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 state- ments below correct? A. The universe is always expanding Years (bllons) B. 10 billion years ago, the expansion rate of the universe was decreasing. C. The universe will be expanding faster 10 billion years later than it is now. See more info about accelerating expansion of the universe on Wikipedia if you are interested. are three basic types ot runcuu3 uru w functions, and exponential functions. Their different forms are detailed in Table 1. nh our data, which can be deduced by looking at

Explanation / Answer

(A) first statement is correct that the universe is always expanding.
As we can see the graph there is no point where the line is horizontal therefore there is always expansion in the universe.
(B) this statement is wrong becasue 10 billions years ago also the universe was expanding but this is the past time that's why it is showing on the negative side of axis.
(C) this statement is correct as we can see the slope of the line is continuously increaasing therefore the rate of expnasion will increase.