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estion 18 2. As shown in Fig. 2, a proton is projected with speed 3.90 x 10° m/s into a region with a uniform electric field parallel to the velocity of the proton with magnitude |E| = 5.00 x 105 N/C and then enters a region with a uniform magnetic field which is perpendicular to the proton velocity. Both the widths of the electric and magnetic regions are 20.0 cm. (a) What is the speed of the proton when it leaves the region with uniform electric field, (b) what is the minimum magnitude of the magnetic field in order for the incoming proton to exit the magnetic region in a direction opposite to its incoming direction, and (c) how much time does the proton stay in the region of magnetic field in this case? if the magnitude of the magnetic field is |B| = 0.260 T, (d) what are the x and y components of the velocity of the proton when it exits the magnetic region and (e) what is the magnitude of the magnetic force on the proton? (the mass of a proton-1.67 x 10-27 kg; the charge of a proton-=1.60 × 10-¹9 C) 60 Use the editor to format your answer 20.0 cm Fig. 2 B ( 22 OF 22 QUESTIONS REMAINING 3 Points 20.0 cm