Two electric charges QA = + 1.0 ?C and QB= - 2.0 ?C are located 0.50 m apart. How much work is needed to move the charges apart and double the distance between them?

A)

-36 × 10-3J
B)

+18 × 10-3
C)

0
D)

+36 × 10-3
E)

-18 × 10-3


B

Physics & Space Science

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