Electron/proton kinetic electric energy

  • Thread starter bocobuff
  • Start date
  • #1
42
0

Homework Statement


an electron starting from rest acquires 3.53keV of kinetic energy in moving from A to B. how much kinetic energy would a proton acquire moving from B to A.


Homework Equations


1/2mv2
me=9.11e-31 kg
mp=1.67e-29 kg
1eV=1.6e-19 J

The Attempt at a Solution


conservation of energy, using potential energy = 0 at ending points and KE=3.53 at ending point so it should be equal to initial potential energy. But that's equal to q*E*s and i don't know E or s
 

Answers and Replies

  • #2
42
0
nvm, it should just be the same as the electron due to conservation of energy
so =3.63 keV
 

Related Threads on Electron/proton kinetic electric energy

  • Last Post
Replies
7
Views
73K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
1
Views
21K
  • Last Post
Replies
5
Views
846
Replies
1
Views
8K
  • Last Post
Replies
4
Views
12K
Replies
3
Views
1K
  • Last Post
Replies
2
Views
5K
Replies
1
Views
13K
Top