Question

why are we able to blow to air both to warm up and to cool things down?
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Answer 1

Answer:

Well, one possible answer is entrainment. When you purse your lips and blow, the air comes out at a high speed. This high-speed air pulls room air along with it, so what you feel is a combination of air from your mouth and room air, which makes it all cooler.

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Answer 2

Answer:

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Explanation:

we always have a tendency to make things have a normal temperature. the air which we blow has a normal temperature. so the things which are colder than the air becomes normal and the things hotter than the air becomes cold and cools down to normal temperature.

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