SOLUTION: Non-homework. A coil of steel wire weighs 50 lbs., diameter 0.025 in. Steel weighs .283 lbs. / cu. in. Determine length of wire. The wire is a regular cylinder. Area of

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Non-homework. A coil of steel wire weighs 50 lbs., diameter 0.025 in. Steel weighs .283 lbs. / cu. in. Determine length of wire. The wire is a regular cylinder. Area of      Log On

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Question 1059604: Non-homework.
A coil of steel wire weighs 50 lbs., diameter 0.025 in. Steel weighs .283 lbs. / cu. in. Determine length of wire.
The wire is a regular cylinder.
Area of circle; pi * r^2.
3.1416 * 0.0125 * 0.0125 = 0.0049 sq. in.
0.0049 * 1 = 0.0049 cu. in. (volume of 1 ft.)
50 / .283 = 176.678 = 177 cu. in. (vol. of wire).
177 / 0.0049 = 36122.48 ft.
Answer given is less. Where am I incorrect ? Thanks.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Your volume calculation.
1 foot is 12 inches.
You've mixed units.
.
.
.
L=%284m%29%2F%28rho%2Api%2AD%5E2%29
L=%2850%2A4%29%2F%280.283%2Api%2A0.025%5E2%29in