Calcubte Q1, 22, and as from the following data
is, al, 26, 30, 40, 45, sosu, 60, 65, 70
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A copper wire, 3mm in diameter, is wound about a cylinder whose length is 12cm, and diameter is 10 cm, so as to cover the curved surface of the cylinder. Find the length of the mass of the wire, assuming the density of copper to be 8.88per cm cube
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