The copper wire

The copper wire bundle with a diameter of 2.8mm has a weight of 5kg. How many meters of wire is bundled if 1m3 of copper weighs 8930kg?

Correct answer:

l =  90.9 m

Step-by-step explanation:

D=2.8 mm m=5 kg ρ=8930 kg/m3  r=D/2=2.8/2=57=1.4 mm r2=r m=r:1000  m=1.4:1000  m=0.0014 m m S=π r22=3.1416 0.001426.1575106 m2  m=ρV m=ρSl  l=ρ Sm l=ρ π r22m=8930 3.1416 0.001425=90.9 m



Did you find an error or inaccuracy? Feel free to write us. Thank you!



avatar







Tips to related online calculators
Do you want to convert length units?
Do you know the volume and unit volume, and want to convert volume units?
Tip: Our Density units converter will help you with the conversion of density units.
Do you want to convert mass units?

Related math problems and questions: