A copper bar with a length of 75 cm and a rectangular cross-section is subjected to a
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A copper bar with a length of 75 cm and a rectangular cross-section is subjected to a tensile force of P = 4 kN as shown in the figure. After the force is applied, the bar is stretched by 8 cm. Given that the dimension of one side of the rectangle is 4.0 cm, what must be the other dimension, b? Y = 17 x 10 6 Pa.
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