##### A point charge q = -0.36 nC is fixed at the origin. Physics homework

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A point charge  = -0.36  is fixed at the origin. Where must a proton be placed in order for the electric force acting on it to be exactly opposite to its weight? (Let the  axis be vertical and the  axis be horizontal.)

below or above the q?

Jan 15th, 2016

The electric force must be up so since the charge at the origin is negative the force on a proton will be up if it is BELOW q

Jan 15th, 2016

Jan 15th, 2016

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Jan 15th, 2016
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Jan 15th, 2016
Dec 8th, 2016
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