2. A particle of charge + Q and mass m is traveling to the right with initial speed vo. It enters midway between the plates of a parallel-plate capacitor where a uniform magnetic field of strength Bo points out of the page as shown in the figure below. The magnetic field is present only in the region between the plates and the force of gravity is negligeable. The plates are separated by a distance s. . Bo Q,m VO If the capacitor is connected to a battery, what must be the voltage V, in terms of +Q, Bo, Vo, S, and m, between the plates in order to ensure that the particle travels in a straight line between the plates? Which plate must be positively charged? Assume the electric field between the plates is uniform