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OpenStudy (anonymous):
two physics books, A and B, are placed on top of each other on a table. Book A's mass is 2 kg and book B's mass is 1 kg. Book A is placed on book B. What is the reaction book B exerts onto book A? Answer choices: A. 9.8 N downwards B. 19.6 N upwards C. 9.8 N upwards D. 19.6 N downwards
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OpenStudy (anonymous):
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