Assume That 10 J of Work Is Needed to Push

question 48

Multiple Choice

Assume that 10 J of work is needed to push a charge,at rest,into an electric field.After the charge is released there,it flies back to its starting position and its kinetic energy there will be

• A)zero.
• B)5 J.
• C)10 J.
• D)more than 10 J.
• E)impossible to predict without additional information.

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