capacitance

[Dx]

A proton moves .1m along hte direction of an electric field of magnitude 3V/m. what iss the change in kinetic energy of the proton?

I have KE = qE/d...1.6x10^-27 * 3V/m /(.1^2)= 4.8x 10^-25 but got it wrong on the test.
What did i do wrong?
Dx

[Tom Mattson]

Originally posted by Dx
A proton moves .1m along hte direction of an electric field of magnitude 3V/m. what iss the change in kinetic energy of the proton?

I have KE = qE/d...


Note: In the formula, distance is not squared, which is correct.


1.6x10^-27 * 3V/m /(.1^2)= 4.8x 10^-25 but got it wrong on the test.
What did i do wrong?


You squared the distance, which is incorrect.

[Dx]

Darn it! I missed that on my test, stupid math mistakes gets me all the time. Thanks Tom!
Dx [;)]