a. expanding
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An observation of the red shift of galaxies suggestst that the universe is
a. expanding
b. contracting
c. reversing
d. stagnant
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For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.
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Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?
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Mackinzie walks 4 blocks west, then 2 blocks south, then 4 blocks east, and, finally, 1 block south. what is the magnitude of her total displacement duringthis walk (in blocks)?
Answers: 2
An observation of the red shift of galaxies suggestst that the universe is
a. expanding
a. expanding
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