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27. Describe why the pitch of a train whistle gets higher as the train gets closer to you.
answered
Feb 27, 2018
Physics
high-school
3
votes
115k
views
I NEED HELP AS SOON AS POSSIBLE
answered
Feb 23, 2018
Mathematics
middle-school
5
votes
74.9k
views
Which of the following weathering processes involves the constant freezing and thawing of water? A. unloading B. exfoliation C. frost wedging D. spheroidal weathering
answered
Oct 5, 2017
Social Studies
high-school
2
votes
25.7k
views
Evelyn has $524.96 in her checking account. She must maintain a $500 balance to avoid a fee. She wrote a check for $32.50 today. Write and solve an inequality to solve for the least amount of money she
answered
May 26, 2017
Mathematics
high-school
3
votes
189k
views
%equation %proportion what is 13% of 4
answered
Mar 4, 2017
Mathematics
middle-school
2
votes
112k
views
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