Physics

posted by .

Two electrons exert a force of repulsion of
0.96 N on each other.
How far apart are they? The elemental
charge is 1.602 × 10
−19
C .

  • Physics -

    0.96 newtons = k e^2/r^2

    k is the Coulomb constant,
    8.99*10^9 N*m^2/C^2.
    You already know what e is.

    Solve for r

  • Physics -

    3.333

  • Physics -

    2.15E8

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    how many excess electrons must be placed on each of two small metal spheres placed 3.00 cm apart in a vacuum if the force of repulsion betwen the spheres is to be 0.000000008 N?
  2. Physics

    Two balls, each with a mass of 0.819 kg, exert a gravitational force of 8.76 × 10^−11 N on each other. How far apart are the balls?
  3. Physics

    Two balls, each with a mass of 0.803 kg, exert a gravitational force of 8.27 × 10 −11 N on each other. How far apart are the balls?
  4. Physics

    Assume that in interstellar space the distance between two electrons is about 0.87 cm. The electric force between them are repulsive. Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × …
  5. Physics

    Two small spheres spaced 20.0 centimeters apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57×10 −21 newtons?
  6. Physic II

    Two like charges of the same magnitude are 8.0 mm apart. if the force of repulsion they exert upon each other is 4.0 N, what is the magnitude of each charge?
  7. Physics

    A strong lightning bolt transfers about 21.45 C to Earth. How many electrons are transferred?
  8. Physics

    Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × 109 N · m2/C2 and the elemental charge is 1.6×10−19C. Answer in units of N (Newtons)
  9. Physics

    A negatively charged balloon has 4 μC of charge. How many excess electrons are on this bal- loon?
  10. physics

    How much positive charge is in 0.8 kg of neon?

More Similar Questions