In this problem, consider electrostatic forces only. In thefigure, there is a particle of charge +Q at x = 0, and there is aparticle of charge +16Q at x = +4a. You are going to bring in athird particle, with a charge of ?4Q, and place it at anappropriate spot on the x-axis. Use Q = 60.0 ?10?6C, and a = 40.0 cm. Also, use k =9.00 ? 109 N · m2/C2.
(a)First, place the particle of charge ?4Q at thecorrect location so that the +Q charge experiences no netforce because of the other two charged particles. In thatsituation, calculate the magnitude of the force that just one ofthe other charged particles exerts on the +Q charge.
(b)Instead, at what location on the x-axis would youplace the particle of charge ?4Q so that the +16Qcharge experiences no net force because of the other two chargedparticles? Note that we're looking for an answer in units ofcentimeters.
(c)Finally, place the particle of charge ?4Q at thecorrect location so that the ?4Q charge experiences no netforce because of the other two charged particles. In thatsituation, calculate the magnitude of the force that just one ofthe other charged particles exerts on the ?4Q charge.