Question

66cm cube of silver is drawn into a wire 1mm in diameter. what is the length of the wire in m​

Answer 1

Answer:

l=  2100cm

Step-by-step explanation:

length of side of cube ,a = 66 cm

diameter of wire = 1 mm = 1/10 cm = .1 cm

let l be the length of the wire

volume of cube = a^3

volume of cylinder = π x r^2 x l

when cube of silver is drawn into a wire

volume of cube = volume of cylinder

a^3 = $\pi$ x r^2 x l

66^3 = (22/7) x .1^2 x l

l = 66^3 x 7 /(22 x .1^2)

= 2100cm

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