the free-electron density in a copper wire is 8.5×1028 electrons/m3. the electric field in the wire is 0.0660 n/c and the temperature of the wire is 20.0∘c. use the resistivity at room temperature for copper is rho = 1.72×10−8 ω⋅m.

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if you break down the data from the global footprint network, china exerts far more pressure on its ecosystems per capita than america in terms of crops, grazing, foresting, and fishing. but where america blows everybody out of the water is carbon emissions per capita