Question 1081123
a wire of circular crooss section has a diameterof 2mm and a length of 350 m if the mass of the wire is 6.82kg calculate its density in g/cm3
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It's a cylinder.
r = 1 mm = 0.1 cm
h = 350 m = 3500 cm
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{{{Vol = pi*r^2*h}}} cubic cm
Mass = 6820 grams
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density = mass/volume