SOLUTION: The weight of copper is 560 lbs per cubic foot. an AWG #4 copper wire is cylindrical in nature, has a diameter of 0.2043 inches and a length of 100ft. What is the cost of raw coppe

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Question 901027: The weight of copper is 560 lbs per cubic foot. an AWG #4 copper wire is cylindrical in nature, has a diameter of 0.2043 inches and a length of 100ft. What is the cost of raw copper to produce such wire if copper is worth $5.40 per kg. (hint: V = π*r^2*h)
solve to the nearest cent
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Try it this way:
p = 5.40 dollars per kg
D = 560 pounds per cubic foot
r = 0.2043/12 feet
h=100 feet
Additionally, use a conversion ration, K = 0.454 kilograms per pound

You want COST of the piece of copper described.

highlight_green%28%28pi%2Ah%2Ar%5E2%29%2AD%2A%280.454%2Akg%2F%28pound%29%29%2Ap%29 using the additional conversion factor for kilograms from pounds. Substitute the given listed values and compute the cost.

This may seem clearer:
highlight_green%28%28pi%2Ah%2Ar%5E2%29%2AD%2AK%2Ap%29 dollars.