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A. An electron is moving east in a uniform electric field of 1.48{\rm N/C} directed to the west. At point A, the velocity of the electron is 4.54×105{\rm m/s} pointed toward the east. What is the speed of the electron when it reaches point B, which is a distance of 0.350{\rm m} east of point A?
B. A proton is moving in the uniform electric field of part A. At point A, the velocity of the proton is 1.95×104{\rm m/s} , again pointed towards the east. What is the speed of the proton at point B?
question 1consider a long straight conducting wire that terminates in a metal sphere of radius r 050 plusmn 001 cm.
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