What is the purpose of the ridges that prevent the funnel from fitting tightly in the mouth

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What is the purpose of the ridges that prevent the funnel from fitting tightly in the mouth of a bottle?

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Conceptual Physics

ISBN: 978-0321568090

11th edition

Authors: Paul G. Hewitt

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Question Posted: Mar 25, 2016 05:51 AM

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What is the purpose of the ridges that prevent the funnel from fitting tightly in the mouth

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The ridges near the base of the funnel allo...View the full answer

Conceptual Physics

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