A -4.00 nC point charge is at the origin, and a second -7.00 nCpoint charge is on

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Question:

A -4.00 nC point charge is at the origin, and a second -7.00 nCpoint charge is on the x-axis at x = 0.800 m.

A) Find the electric field(magnitude and direction) at point on the x-axisat x = 0.200 m.

Express your answer with the appropriate units. Enterpositive value if the field is in thepositive x-direction and negative value if the fieldis in the negative x-direction.

B) Find theelectric field (magnitude and direction) at point onthe x-axis at x =1.20 m.

Express your answer with the appropriate units. Enterpositive value if the field is in thepositive x-direction and negative value if the fieldis in the negative x-direction.

C) Find theelectric field (magnitude and direction) at point onthe x-axis at x =-0.200 m.

Express your answer with the appropriate units. Enterpositive value if the field is in thepositive x-direction and negative value if the fieldis in the negative x-direction.

PLEASE ANSWER WITH UNITS !!!!!