physics

posted by .

if 3e charge is at the origin and the magnesium nucleus is 3cm from the origin in the +x direction, at what position along the x- axis should an electron be placed so that the electron experiences no net force?

  • physics -

    What you are really asking is where to put a 1 e charge to exactly balance a 3 e located charge at the origin if we are standing at x = 3 holding charge q

    F/q = k Q1 /r^2
    F/q to left = k (-3)/9

    F/q to right = k (-1)/(x-3)^2

    so
    1/(x-3)^2 = 1/3
    (x-3)^2 = 3
    x-3 = sqrt 3
    x = 3 + sqrt 3

  • physics -

    IS 1

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. …
  2. Physics

    An electron moving along the x axis has a position given by x = 14 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
  3. Physics Important please

    If the 3e charge is at the origin and the Magnesium nucleus is 3cm from the origin in the +x direction, at what position (in centimeters) along the x-axis should an electron be placed so that it (the electron) experiences no net force?
  4. Physics

    In addition to the Mg nucleus at x = 3 cm, another 3e charge is situated on the y-axis, 3cm away from the origin in the +y direction as shown below: What is the magnitude of the Electric Field halfway between the Magnesium nucleus …
  5. Physics Urgent please help

    In addition to the Mg nucleus at x = 3 cm, another 3e charge is situated on the y-axis,3cm away from the origin in the +y direction.What is the magnitude of the Electric Field halfway between the Magnesium nucleus and the 3e charge …
  6. Physics

    a)If a Magnesium nucleus is fixed a distance away from a charge, what is the magnitude of the electrostatic force it experiences in Newtons (yes, it is a small force in Newtons)?
  7. physics

    if 3e charge is at the origin and magnesium nucleus is 3cm fom thr origin in the x-axis. what is the magnitude of the net electrostatic force a Boron nucleus would experience at a point half way between magnesium nucleus and 3e.
  8. physics

    if 3e charge is at the origin and magnesium nucleus is 3 cm from the origin in the x-direction. what is the magnitude of the net force a boron nucleus would experience half way between magnesium nucleus and 3 e charge
  9. physics urgent help !

    if a 3e charge is at the origin and a magnesium nucleus is 3 cm from the originin the x-axis direction.what is the magnitude of the net electrostatic force a Boron nucleus would experience at the point half way between magnesium nucleus …
  10. physics

    1)A hypothetical neutral atom has 77 electrons. One of its electrons is held in circular orbit of radius r = 0.244 nm by electrostatic attraction between the electron and the nucleus. Assume: the interaction between electrons is negligible. …

More Similar Questions