Waves:
in constructive interference, two waves moving through the same medium must be
c...
Social Studies, 05.02.2020 13:53 rishiganesh
Waves:
in constructive interference, two waves moving through the same medium must be
choose one answer.
a.
in phase with each other
b.
cancelled out by each other
c.
blocked by each other
d.
out of phase with each other
Answers: 3
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Match the philosopher with his ideas, achievement, or events in his life. aristotle
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In 1914, alabama produced 1.7 million bales of cotton, but three years later produced only 515,000, bales. meanwhile, in georgia, 5.2 million acres of land was dedicated for cotton production in 1914, but by 1923 there were just 2.6 million acres used for growing cotton. all of this was the result of the work of a tiny insect: the boll weevil. alabama and georgia first felt the effects of the boll weevil at different times. what would account for this difference in timing?
Answers: 1
Social Studies, 22.06.2019 21:30
Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design
Answers: 2
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