A proton accelerates from rest in a uniform electric field of 606 N/C. At some later time, its speed is 1.30 x 106 m/s. (a) Find the magnitude of the acceleration of the proton. 6.06e 10m/s2 (b) How long does it take the proton to reach this speed? 21.5 HS (c) How far has it moved in that interval? 14 (d) What is its kinetic energy at the later time? 1.1e-15X Use the mass and final speed of the proton to calculate its final kinetic energy. J

6 An electron is placed in a constant electric field, E = 2.2 x 10-13j . The electron is given an initial velocity of v = 1.5i m a. Calculate the acceleration that the electron experiences. -38.13 MM b. Calculate the time that it takes for the electron to move 1.0m in the -j direction. 7.19s c. After the time in part b has elapsed, where is the electron relative to its starting position? 10.6-1.00 m

3)An electron with speed 2.15×107 m/s is traveling parallel to a uniform electric field of magnitude 1.15×104 N/C . Part A How far will the electron travel before it stops? Part B How much time will elapse before it returns to its starting point?

1- An electron with a speed of 2.0  × 10 6 m/s moves into a uniform electric field of 550 N/C that is parallel to the electron’s motion. How long does it take to bring the electron to rest? ( m e = 9.11 × 10 −31 kg, e = 1.6 × 10 −19 C)