The object has a charge of $20\mathrm{.}0nC.$ Point $A$ is located on the $x-$axis at $x=+8\mathrm{.}00cm,$ and point $B$ is located on the $x-$axis at $x=+40\mathrm{.}0$

$cm.$ Determine the magnitude of the potential difference between point A and point $B,$ because of the charged object at the origin.

v

Part $($b$)$

A second charged particle, with a charge of $5\mathrm{.}00nC$ and a mass of $4\mathrm{.}00$ milligrams, is released from rest from point $A.$ The second

particle is repelled by the original particle. What is the speed of the second particle when it passes through point $B?$

$\frac{m}{s}$

Type your numeric answer and submit

Part $($c$)$

What is the speed of the second particle when it has traveled a long way away from the origin?

$\frac{m}{s}$