[soutland]

A copper refinery produces a copper ingot weighing 200 .

If the copper is drawn into wire whose diameter is 8.35mm , how many feet of copper can be obtained from the ingot? The density of copper is 8.94 g/cm^3 .

Density = Mass / Volume (D=M/V)
Volume of a Cylinder = pi * H * r^2 (H = height/length, r = radius)

Given values (and converted to SI units)

Mass of Ingot = 200 lb = 90.718424 kg
Diameter of Wire = 0.00805 m

[Borek]

You have to show your attempts at solving the question to receive help. This is a forum policy.

Start calculating volume of the copper.

[SABRY]

1. Calculate the volume of copper wire and multiply by the density.
2. The result should equal to the weight of ingot.
3. Then solve for H.
4. Ensure units consistency.