A copper wire of

Given,

Diameter of the copper wire = 6 mm = 0.6 cm

Radius of the copper wire = 0.3 cm

Length of the cylinder = 18 cm

Diameter of the cylinder = 49 cm

Radius of the cylinder = cm

Density of the copper = 8.8g

Number of the rotations on the cylinder = = 30 cm

Base circumference of the cylinder = 2πr = = 154 cm

So,

Length of the wire = 154 × 30 = 4620 cm

Volume of the wire = πr²h

= × 0.3 × 0.3 × 4620 = 1306.8

Weight of the wire = volume × density

= 1306.8 × 8.8 = 11,499.84 gm