Copper wire

What is the weight of 1000 m copper wire with a diameter of 5 mm when metric density p = 8.8 g/cm3?

Final Answer:

m =  172.7876 kg

Step-by-step explanation:

l=1000 m cm=1000 100  cm=100000 cm D=5 mm cm=5:10  cm=0.5 cm r=D/2=0.5/2=41=0.25 cm p=8.8 g/cm3  V=π r2 l=3.1416 0.252 10000019634.9541 cm3 m1=p V=8.8 19634.9541172787.5959 g  m=m1 kg=m1:1000  kg=172787.5959:1000  kg=172.788 kg=172.7876 kg



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