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Find the weight of a copper wire 0.125in. in diameter and 2 miles long. Allow 550lb of copper to a cubic foot.

Sagot :

Shinalcantaraidn

to find the weight, you'll have the formula:

W = Unit weight × Volume

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Since unit weight is given as 550lb/ft³ then we'll need to find the volume in cubic feet.

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Volume = πr²h

[tex]V = \pi (0.125~in)^2( \frac{1ft}{12~in})^2(2mi)( \frac{1,609m}{1mi})( \frac{3.28ft}{1m}) \\ V=1.167ft^3 \\ --------------- \\ W = Unit Wt(Volume) \\ W = 550 \frac{lb}{ft^3}(1.167ft^3) \\ W = 641.85lb [/tex]