- #1
bocobuff
- 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