A rod 120 cm long and of a diameter 3.0 cm is stretched by a force of 18 kN. What is its stress? a. 20. 70 N/mm^2 b. 25.47 N/mm^2 c. 245 N/mm^2 d. 2,470 N/mm^2

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Chapter1: Units, Trigonometry. And Vectors
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A rod 120 cm long and of a diameter 3.0 cm is stretched by a force of 18 kN. What is its stress? a. 20. 70 N/mm^2 b. 25.47 N/mm^2 c. 245 N/mm^2 d. 2,470 N/mm^2
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