what did taking measurements reveal about the velocity of the fireball? Was the fireball’s velocity constant or changing?

The fireball slows down when moving upward. It speeds up when moving downward. So, its velocity is always changing.

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )