Post a New Question

Physics

posted by .

A. Calculate the force on an alpha particle in an electric field E=Exm where E=3.6E4 N/C and x is a unit vector in the x direction. What is the direction of the force?
B. Calculate the acceleration of the alpha particle in this electric field. What is the direction of the acceleration?

For part A what I did was:
F=qE=2(1.60E-19 C)(3.6E5N/C)=1.152E-13 to the positive x direction

Part B.

a=qE/m
F=mg
m=F/g
m=1.17E-14
a=1.602E-19[1.15E-13/1.17E-14]
a=1.57E-18 m/s^2 to the +x direction

Not sure of the first one but I think the second one is definately wrong.Please check.

  • Physics -

    Why did you change E from 3.6*10^4 N/C to 3.6*10^5 N/C?

    In Part 2, a = qE/m is the correct equation, but I do not see why you then introduced g.

    The mass of an alpha particle is wrong. It is about 6.67*10^-27 kg

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.18 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's …
  2. Physics

    q1= 25 pC q2 = -75 pC A) calculate the magnitude of the electric force between the two charges B) Is the force attractive or repulsive?
  3. physics

    A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.19 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's …
  4. physics

    A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.19 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's …
  5. Physics Diploma

    the intensity and direction of the electric field produced by an alpha particle at a distance of 5.0 x10^-11m from the particle is [1.2x10^12 N/C away from the alpha particle] how do you get the direction?
  6. Physics Electric Force

    Particle A of charge 2.76 10-4 C is at the origin, particle B of charge -6.54 10-4 C is at (4.00 m, 0), and particle C of charge 1.02 10-4 C is at (0, 3.00 m). We wish to find the net electric force on C. (a) What is the x component …
  7. Physics

    An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.06 105 m/s to a final velocity of +2.03 106 m/s while traveling …
  8. Vectors Math

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, …
  9. Vectors

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, …
  10. Vectors Math

    The magnetic force (Vector FM)on a particle in a magnetic field is found by Vector FM = Vector I × Vector B, Vector I is the charge multiplied by the velocity of a charged particle and Vector B the strength of the magnetic field, …

More Similar Questions

Post a New Question