chemistry
posted by Anonymous on .
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

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