A particle with a charge of 0.65 nC is in a uniform electric field E directed to the left. It is released from rest and moves to the left; after it has moved 0.45 mm its kinetic energy is found to be 4.8 µJ. a. What work was done by the electric force? b. What is the potential of the starting point with respect to the end point? c. What is the magnitude of the electric field?

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter25: Electric Potential
Section: Chapter Questions
Problem 25.5P: A uniform electric field of magnitude 325 V/m is directed in the negative y direction in Figure...
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5. A particle with a charge of 0.65 nC is in a uniform electric field E directed to the left. It is
released from rest and moves to the left; after it has moved 0.45 mm its kinetic energy is
found to be 4.8 pJ.
a. What work was done by the electric force?
b. What is the potential of the starting point with respect to the end point?
c. What is the magnitude of the electric field?
Transcribed Image Text:5. A particle with a charge of 0.65 nC is in a uniform electric field E directed to the left. It is released from rest and moves to the left; after it has moved 0.45 mm its kinetic energy is found to be 4.8 pJ. a. What work was done by the electric force? b. What is the potential of the starting point with respect to the end point? c. What is the magnitude of the electric field?
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