A ball thrown upwards reaches a maximum height and then comes back down to the original level. At the peak of the motion, the velocity is __________ and the acceleration points __________
Fill in the blank(s) with correct word
zero, down
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Astrology is an example of _______________
Fill in the blank(s) with correct word
Talk about vertigo! You've been dropped at the edge of a cliff, looking down for what seems to be miles! There's only one way to go from here: up! But it's going to be quite a climb, requiring all of the mountaineering skills you've ever heard of
The atmosphere here is very thin even at the mean surface level of this place; at altitude you'll never get a lungful. No matter, though; you could not breathe this atmosphere anyway, since it contains no oxygen; it's mostly carbon dioxide. You climb and climb; this mountain must be three times the height of Everest, and much broader at its base! There are clouds around you, and you can find water ice as well. When you try to melt it, however, it does not turn to liquid (it vaporizes to gas). Oh well, just keep climbing. But what will you do when you get to the top?
The energy released when a star explodes in a supernova can be more than the nuclear fusion energy produced by the same star throughout its entire lifetime.
Answer the following statement true (T) or false (F)
Shapley found the Sun is located about halfway out the disk from the center of the disk of the Galaxy
Indicate whether the statement is true or false