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Unformatted text preview: with the positive x direction. 4. Chapter 24 Problem 41 A particle of charge +6.6 C is released from rest at the point x = 82 cm on an x axis. The particle begins to move due to the presence of a charge Q that remains fixed at the origin. What is the kinetic energy of the particle at the instant it has moved 41 cm if (a) Q = +90 C and (b) Q = 90 C? 5. Chapter 24 Problem 62 Sphere 1 with radius R 1 has positive charge q . Sphere 2 with radius 3 R 1 is far from sphere 1 and initially uncharged. After the separated spheres are connected with a wire thin enough to retain only negligible charge, what fraction of q ends up on (a) sphere 1 and (b) sphere 2? (c) What is the ratio of the final surface charge density of sphere 1 to that of sphere 2? (Answer with 2 significant figures.)...
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