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The electric potential in a region of space is given by V ( x,y,z ) =...

The electric potential in a region of space is given by V ( x,y,z ) = -x^2 + 2y^2 + 15. If a 5 Coulomb particle is placed at position (x,y,z)=(-2,-2,0), what is the magnitude and direction of the force it experiences?

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