Winds are caused by air moving around in the atmosphere. wind turbines harness the mechanical energy in wind and convert it into electricity. what is the source of the mechanical energy in wind?

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There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

The answer is c.  h+  and oh−  react to form water (h2o). i just took the test and i got it right. hope this !