(Solved): The electrons in the beam of a television tube have a kinetic energy of 2.171015J, Initially ...

The electrons in the beam of a television tube have a kinetic energy of $$2.17\times 10^{?15}\mathrm{J}$$, Initially, the electrons move horizontally from west to east. The vertical component of the earth's magnetic field points down, toward the surface of the earth, and has a magnitude of $$1.76\times 10^{?5}\mathrm{T}$$. What is the acceleration of an electron due to this field component? Number Units