# Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 305 N/C. (a)What is the magnitude of the acceleration of the electron (in m/s2)?  (b)The electron is initially at rest. What is its speed (in m/s) after 1.05 ✕ 10−8 s?

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Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 305 N/C.

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

(b)
The electron is initially at rest. What is its speed (in m/s) after 1.05 ✕ 10−8 s?

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Step 1

(a) The magnitude of the acceleration of the electron is

Step 2

Substitute the value in equation (1) to fin...

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### Electric Charges and Fields 