Question

A particle (charge = +50 μC) is placed on the y axis at the point y...

A particle (charge = +50 μC) is placed on the y axis at the point y = +40 cm, and a second
particle (charge = –20 μC) is placed at the origin (x = y = 0). What is the direction of the
total electrostatic force on a third particle with respect to the +x-axis (charge = –5.0 μC)
placed on the x axis at the point x = +30 cm?

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