chemistry

calculate the mass of a 4.50 m long copper rod that has the diameter of 1.25cm. the density of copper is 8.94 g/ml

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  1. mass = volume x density
    density is given
    volume = pi*r^2*l
    r = 1.25/2 = ?
    pi = 3.14
    l = 4.50m = 4500 cm

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    posted by DrBob222

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