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Question 5 In the figure particle 1 of charge q1-1.0ЭрС and particle 2 of charge q2--309 μC, are held at separation L-102 cm on an x axis. if particle 3 of unknown charge q3 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be the (a)x and (bly coordinates of particle 3? (a) Number Units (b) Number UnitsQuestion 6 Three particles are fixed on anx axis. Particle 1 of charge q1 is atx-a and particle 2 of charge q2 is atx-+a. If their net electrostatic force on particle 3 of charge Q is to be zero, what must be the ratio q/q2 when particle 3 is at (a) x-+0.457a and (b) x-+ 2.23a? (a) Number Units (b) Number UnitsQuestion 7 Flying Circus of Physics If a cat repeatedly rubs against your cotton slacks on a dry day, the charge transfer between the cat hair and the cotton can leave you with an excess charge of-2.20 μC. (a) How many electrons are transferred between you and the cat? You will gradually discharge via the floor, but if instead of waiting, you immediately reach toward a faucet, a painful spark can suddenly appear as your fingers near the faucet. (b) In that spark, do electrons flow from you to the faucet or vice versa? (c) Just before the spark appears, do you induce positive or negative charge in the faucet? (d) If, instead, the cat reaches a paw toward the faucet, which way do electrons flow in the resulting spark, from faucet to the cat or vice versa? (a) Number Units

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