Why is a football firm when it is inflated to its proper pressure

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Why is a football firm when it is inflated to its proper pressure

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Lệ Thu 4 years 2021-08-20T09:56:39+00:00 1 Answers 49 views 0

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  1. trungdung22
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    2021-08-20T09:58:27+00:00
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    Answer:

    Proper Inflation and Feel When inflating your ball, you can use either a hand pump or an air pump equipped with a gauge that gives readings in pounds per square inch, also called psi. Footballs used in the NFL are inflated to 13 psi, but a proper range can fall between 12.5 and 13.5 psi, according to Wilson Sporting Goods.

    Explanation:

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