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#### Question 3

Two point charges are placed on the x axis.The first charge, q1=

8.00 nC, is placed a distance 16.0 m from the origin along the

positive x axis; the second charge, q2 = 6.00 nC, is placed a

distance 9.00 m from the origin along the negative x axis.

(figure provided in the solution)

Part A: Find the electric field at the origin, point O.

Part B: Now, assume that charge q2 is negative; q2 = -6 nC . What

is the net electric field at the origin, point O?

Give the x and y components of the electric field as an ordered pair. Express your answer in newtons per coulomb to three significant figures. Keep in mind that an x component that points to the right is positive and a

y component that points upward is positive.

#### Solution

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