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  • 18-08-2020
  • Physics
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When a book sits on a shelf, what force (if any) does the shelf exert on the book? A. friction B. a normal force C. an action force D. The weight of the book

Respuesta :

23rayb
23rayb 23rayb
  • 18-08-2020

Answer:

B

Explanation:

it is a balenced force that holds the book up

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