What are the magnitude and direction of the magnetic force exerted on the electron when it is moving toward east in the uniform magnetic field of strength 2 T and pointed in upward direction, with kinetic energy 2x10-18 J? (a) 6.7x1013 N, into the page (b) 6.7x1013 N, out of the page (c) 1.8x10-13 N, out of the page (d) 1.8x1013 N, in to the page

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