A book is at rest on a table. What is the "reaction" force according to Newton's third law to th...

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A book is at rest on a table. What is the "reaction" force according to Newton's third law to the gravitational force by the earth on the book?
\( P \)
(A) the normal force exerted by the table on the book
(B) the normal force exerted by the table on the ground
W.
(C) the normal force exerted by the ground on the table
(D) the gravitational force exerted on the earth by the book
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