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?

Correct answer:

m =  172.7876 kg

Step-by-step explanation:

l=1000 100=100000 D=5/10=21=0.5 r=D/2=0.5/2=41=0.25 p=8.8 V=π r2 l=3.1416 0.252 10000019634.9541 m=p V/1000=8.8 19634.9541/1000=172.7876 kg

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