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If you were to yell at a canyon wall, you would hear yourself a short time later. This is because sound can be A. reflected. B. refracted. C. diffracted. D. polarized.
asked
Jan 8, 2018
Physics
middle-school
2
answers
3
votes
57.2k
views
The product of sin 30 degrees and sin 60 degrees is the same as the product of
asked
Sep 2, 2017
Mathematics
high-school
2
answers
4
votes
223k
views
Describe the major themes of literature in the new deal era.
asked
May 13, 2017
History
high-school
1
answer
3
votes
58.1k
views
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