Question

A cubic metre of iron is drawn into a wire of diametre of 4mm. Calaculate the length of the wire.​

Answer 1

Length of Wire = 79.55 km when A cubic metre of iron is drawn into a wire of diametre of 4mm

Step-by-step explanation:

Iron = 1 cubic Meter  = 10⁹ mm³

wire of diameter of 4mm

=> Radius = 4/2 = 2 mm

Volume of Wire  =  πR²H

H = Length of Wire

R = 2 mm

(22/7) 2² * H  = 10⁹

=> H = 7.955 * 10⁷ mm

=> H = 7.955 * 10⁴ m

=> H = 7.955 * 10 km

=> H = 79.55 km

Length of Wire = 79.55 km

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