An electron, starting from rest, is accelerated by a uniform electric field of 9.00 ×× 104 N/C that extends over a distance of 4.00 cm. What is the speed of the electron when it leaves the region of the uniform electric field?

An electron is traveling through a uniform electric field. The field is constant and given by E=(2.00×10−11N/C) i^− (1.20×10−11N/C) j^. At t=0 , the electron is at the origin and traveling in the x direction with a speed of 2.20 m/s. Part A) What is its position 2.50 s later? x= ?   (in m)  Part B) y=?

Inside a cathode ray tube, an electron is in the presence of a uniform electric field with a magnitude of 275 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 1.20 ✕ 10−8 s?                            m/s

21.84 . CALC A semicircle of radius a is in the first and second y. quadrants, with the center of cur- vature at the origin. Positive charge +Q is distributed uniformly around the left half of the semicircle, and negative charge -Q is distributed uniformly around the right half of the semicircle (Fig. P21.84). What are the magnitude and direction of the net electric field at the origin produced by this distribution of charge? +Q x-