Author Question: An alpha particle (m = 6.7 1027 kg, q = +3.2 1019 C) has a speed of 20 km/s at point A and moves ... (Read 43 times)

Alainaaa8 · **on:** Jul 28, 2018

An alpha particle (m = 6.7 1027 kg, q = +3.2 1019 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 VA VB.
a. +4.2 V
b. 4.2 V
c. 9.4 V
d. +9.4 V
e. 8.4 V

Question 2

A particle (m = 2.0 g, q = 5.0 C) has a speed of 30 m/s at point A and moves (with only electric forces acting on it) to point B where its speed is 80 m/s. Determine the electric potential difference VA VB.
a. 2.2 kV
b. +1.1 kV
c. 1.1 kV
d. +2.2 kV
e. +1.3 kV