A 12 kg block is placed on a frictionless air table. A 7 kg block is placed on top of the 12 kg block and secured with a cord. It takes a 13 N force to pull the bottom block from under the top block. The smaller block is then placed back on the larger block and untied. a. Determine the maximum force that can be applied to the bottom block in order for the two blocks to remain together. b. What is their resulting acceleration?

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