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Question 9 Unsaved A 680-Hz sound wave travels at 340 m/s in air, with a wavelength of 0.5 m. 5 m. 50 m. 500 m. none of the above
asked
May 17, 2019
Physics
college
2
answers
3
votes
189k
views
last month you swim the 50m freestyle in 28.38 seconds. Today you swim it in 27.33 seconds what is your percent of change round to the nearest tenth of a percent if necessary
asked
Feb 23, 2019
Mathematics
middle-school
1
answer
4
votes
189k
views
Explain the characteristics of a triangle.
asked
Jan 8, 2019
Mathematics
middle-school
1
answer
1
vote
178k
views
Which of the following can reduce biodiversity within a natural environment? A. Giant kangaroo rats enrich the soil for plants with their piles of grass clippings in the California grasslands. B. Grasslands
asked
Oct 26, 2018
Biology
high-school
2
answers
5
votes
89.1k
views
The period of history that includes the rise of european nation-states and colonial empires is traditionally referred to as
asked
Aug 4, 2018
History
high-school
1
answer
5
votes
228k
views
Which is the best strategy for avoiding long-term stress? Develop a fun hobby and spend time on it every day. Manage time effectively and include time to relax. Spend less time on activites that you find
asked
Mar 17, 2018
Health
high-school
2
answers
2
votes
10.6k
views
What factors in an experiment are observed, measured, and recorded? A.) independent variables B.) constants C.) hypothesis D.) dependent variables
asked
Oct 2, 2017
Biology
high-school
2
answers
5
votes
142k
views
If x/5 = 4/15 value of x ?
asked
Jan 12, 2017
Mathematics
middle-school
2
answers
4
votes
40.9k
views
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