when we do "haa" warm and when we do "whoo"cold air comes. why??
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you say haa with a warm feeling and hoo with a cool freling
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Explanation:
The reason is because when you say "haa" your mouth is open , effectively allowing the air to come out more slowly. when you say "whoo" , your mouth is closed more which has the same effect of putting your thumb over the hose opening.
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