Question

021 (part 1 of 3) 10.0 points An electron has an initial velocity of 3.5 x 10 m/s in the r direction. It enters a uniform electric field E = (300 N/C) which is in the y direction. Find the acceleration of the electron. The fundamental charge is 1.602 x 10-19 C and the mass of the electron is 9.109 x 10-31 kg. Answer in units of m/s". 022 (part 2 of 3) 10.0 points How long does it take for the electron to travel 12 cm in the r direction in the field? Answer in units of ns. 023 (part 3 of 3) 10.0 points Taking the +j direction as positive, by how much is the electron deflected after traveling 12 cm in the direction in the field? Answer in units of cm.

Answer 1

BO www Part 1 of 3 Given an ě has an initial velocity (Vo) n = 3.5810 ms! The è has no initial velocity in yo direction (Voly zo Magnitude of electric field a 300 N/C .. The directim cat this electric field in y direction. te Ě 2300 N(C) Î since electric field in in y- direction .me on the ě will also be in y direction. But ! particle is é so the e- will achieve displacement opposite to the direction of electric field. ře fy = may ཁང། ང༔ -- 16X10 44300 reince Get 9-109 X101 kg - a80 x 10 19 x1031 Amst 9109 var 5- 5170 102 m5 A The acceleration of the é = -52.70 x 1012 min part 2 of 3 we have (6) n =3.58 106 mil . and (Initial position along ( y direction) At tzo Xo = %=D From Kinematics - X = Me Wolnt + haut But there is no acceleration is no force along x-direction . 2 z (voluti along x-direction, because , anao there Wolnt

to è treavel 12 con along n- by the .: Time trequired direction - were . no 12 cm x 12x 102m. (V.)n "3.5x 106 mål 128102m Time,t = 3-5x 1076 ms' z 12 x 108s = 3.43 x 168s = 0.343 x 16 x 1585 - 6-343 x Logs 0.343 ns . Requirced time = 0.343 ns. parte 3 - At to yo=0 and (Vuly 20 Chub from kimeel kinematid - y = % + (volyt + tayt à y = ₂ (-52-70x10 12 m5) į ay=-26.35 X 20 12 m5xn This after travelling 12 cm in a direction it will be deflected in one y direction ( because it is electron). The amount of deflection is a 4. y = -26:35x102 mix (12 X 10 12gr mx -2635 x 16 7,5 x106) - 26.25 X 102, 144x164 - 26-35 X144 vina! 2.25 X love m 12:25 =-309.758104 m = - 309.75 x 102 cm = -3.0975 an
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