An alpha particle (m = 6.7* 10 ^- ²⁷ kg,q = +3.2 *10 ^- ¹⁹ C)has a speed of 20 km/s at point A and moves to point B where it momentarily stops.Only electric forces act on the particle during this motion.Determine the electric potential difference V_A- V_B. A)+4.2 V B)-4.2 V C)-9.4 V D)+9.4 V E)-8.4 V

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The Answer of An alpha particle (m = 6.7* 10 ^- ²⁷ kg,q = +3.2 *10 ^- ¹⁹ C)has a speed of 20 km/s at point A and moves to point B where it momentarily stops.Only electric forces act on the particle during this motion.Determine the electric potential difference V_A- V_B. A)+4.2 V B)-4.2 V C)-9.4 V D)+9.4 V E)-8.4 V

An Alpha Particle (M = 6