Question

Find the length of 11 kg of copper wire of diameter 0.4 cm, given 1 cubic cm of
copper has a mass of 8.4 g.

plz give correct answer​

Answer 1

Answer:

Weight of copper wire is 11 kg

Radius of copper wire is (r) is =0.2 cm

Density of copper wire is 8.4 gm \cm cube

So, volume of the copper wire V= density/mass

:::::::: length of wire=104.17 m

Answer 2

Answer:

Volume of wire = 11000/8.4

And also volume =22/2*0.2*0.2*h

So 22/7* 0.04*h = 11000/8.4

h=10416.67cm

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