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OpenStudy (anonymous):
A solid concrete block weighs 169 N and is resting on the ground. The blocks dimensions are 0.400 m x 0.200 m x 0.100 m. A number of identical blocks are stacked on this one. What is the smallest number of whole blocks that can be stacked so that their weight creates a pressure of at least 2 atmospheres on the ground beneath the first block
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