A copper wire 1.50 mm in radius has a current of 4.50x10⁻⁶ A due to the motion of electrons in the The charge of an individual electron is 1.60x10⁻¹⁹C and its mass is 9.11x10⁻³¹ kg.

a) Find the current density (A/m²) in the wire.
b) What is the particle density (particles/ m³) in the wire?
c) Find the speed of the electrons in the wire.
d) Find the kinetic energy in joules of individual electrons in the wire.
e) How many electrons will pass any point on the wire in one minute?