Chemistry, 08.12.2020 20:00 veaseyjermarius1234
I'm not that smart :)
When a child slides down a slide (if there is no friction and all of the mechanical energy is conserved) what would happen?
Question 3 options:
A. Potential energy would turn to Kinetic energy
B. The energy is destroyed
C. Kinetic energy would turn in to Potential energy
D. All energy stays the same
Answers: 2
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What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?
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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
I'm not that smart :)
When a child slides down a slide (if there is no friction and all of the mech...
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