stephaniechavez313
Answered

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*example of previous incorrect/correct answer on similar question) Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 330 N/C.

(a) What is the magnitude of the acceleration of the electron (in m/s²)?
__________m/s²

(b) The electron is initially at rest. What is its speed (in m/s) after 8.00 ✕ 10−⁹ s?
______m/s

Example Of Previous Incorrectcorrect Answer On Similar Question Inside A Vacuum Tube An Electron Is In The Presence Of A Uniform Electric Field With A Magnitude class=

Sagot :

pstnonsonjoku

The final speed of the electron is 4.64 * 10^5 m/s.

What is the speed of the electron?

Given that the mass of the electron is obtained as 9.11 * 10^-31 Kg, we have that the charge of the electron is 1.6 * 10^-19 C.

E= F/q

F = Eq

F =  330 N/C * 1.6 * 10^-19 C

F = 5.28 * 10^-17 N

F = ma

a = F/m = 5.28 * 10^-17 N/ 9.11 * 10^-31 Kg

a = 5.8 * 10^13 m/s^2

Using

v = u + at

u = 0 m/s because the electron was initially at rest

v = at

v = 5.8 * 10^13 * 8.00 ✕ 10−⁹ s

v = 4.64 * 10^5 m/s

Learn more about the speed of the electron:https://brainly.com/question/13130380

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