Acharged particle a exerts a force of 2.45 μn to the right on charged particle b when the particles are 12.2 mm apart. particle b moves straight away from a to make the distance between them 18.2 mm. what vector force does particle b then exert on a?

Explanation:

As we know that the electrostatic force is a based upon inverse square law

so we have

now since it depends inverse on the square of the distance so we can say

now we know that

also we know that

now from above equation we have

260 miles per hour

explanation:

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.