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Physics, 25.01.2021 18:20 allieballey0727

Letter from a Concerned Parent Dear Mr. Chang, I am worried about your proposal to install a groundwater heating system in my daughter’s school. I don’t think that water at a temperature of 30ºC has enough energy to heat the school. If the school is too cold, the students won’t be able to focus on learning. Sincerely, David Li What do you think energy is?

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