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Chemistry, 23.06.2019 08:00, mshields1994
Amechanical wave that transports a lot of energy will have a
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Chemistry, 23.06.2019 11:20, bobthebattlebot
The chemical composition of soil varies with depth. an article in communications in soil science and plant analysis describes chemical analyses of soil taken from a farm in western australia. fifty specimens were each taken at depths 50 and 250 cm. at a depth of 50 cm, the average no3 concentration (in mg/l) was 88.5 with a standard deviation of 49.4. at a depth of 250 cm, the average concentration was 110.6 with a standard deviation of 51.5. find a 95% confidence interval for the difference in no3 concentrations at the two depths.
Answers: 1
Chemistry, 23.06.2019 16:30, peperivera2652738
In chile, the deepest earthquake occurred at 61.7°w longitude at a depth of 540 km. if the rocks at the focus began subducting 10 million years ago and are now 1000 km from their original position, what is the average rate of subduction in cm/yr?
Answers: 1
Which of these is a chemical property of aluminum?...
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