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Solve the following problems:
Problem I: A sheet of copper ( is 2.0 mm thick and has surface dimensions of 3.0 cm x 16 cm. If the long edges are joined to form a tube 16 cm in length, what is the resistance between the ends?
Problem II: Consider now that the sheet is a square where the dimensions are 3.0 cm x 3.0 cm, and we are trying to bend it in half, what is the resistance if it's 4.0 mm thick. It has the same resistivity as the sheet of cooper in above problem.
Problem III: Now, we change the shape to a triangle, with a specific height of 16 cm, and a base of 13 cm, the triangle has a resistance of, find its resistivity.
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