. In the xy-plane, the region y > 0 has a uniform magnetic field and the region y < 0 has


In the xy-plane, the region y > 0 has a uniform magnetic field  and the region y < 0 has another uniform magnetic field  A positively charged particle is projected from the origin along the positive y-axis with speed v0 = π m s-1 at t = 0, as shown in the figure. Neglect gravity in this problem. Let t = T be the time when the particle crosses the x-axis from below for the first time. If B2 = 4B1, the average speed of the particle, in m s-1, along the x-axis in the time interval T is _______ .

In the xy-plane,

Best Answer

In the xy-plane,

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