Part A What is the electric potential energy of the 3.00 nCcharge? Express your

Question

Part A

What is the electric potential energy of the 3.00 nCcharge?

Express your answer in joules to three significant figures.

1.8•1011

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Part B

What would be the maximum kinetic energy of the 3.00 nC charge if it were released from rest in the frictionless void of outer space? (Assume the other charges are held in place.

A set of point charges is held in place at the vertices of an equilateral triangle of side 13.0 cm , as shown in (Figure 1) .

Part A

What is the electric potential energy of the 3.00 nCcharge?

Express your answer in joules to three significant figures.

1.8•1011

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Incorrect; Try Again

Part B

What would be the maximum kinetic energy of the 3.00 nC charge if it were released from rest in the frictionless void of outer space? (Assume the other charges are held in place.

Explanation / Answer

electric potential energy = kQq/r

electric potential energy = kQ(q1/r1 + q2/2)

the electric potential energy of the 3.00 nC = 9*10^9*3*10^(-9)(2*10^(-9)/0.13 + 4*10^(-9)/0.13) = 1.25*10^(-6) J

the electric potential energy of the 3.00 nC = the maximum kinetic energy of the 3.00 nC

so the maximum kinetic energy of the 3.00 nC = 1.25*10^(-6) J

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