College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- Two point charges lie along the y-axis. A charge of q1 = -8 ?C is at y = 6.0 m, and a charge of q2 = -7 ?C is at y = -4.0 m. Locate the point (other than infinity) at which the total electric field is zero.arrow_forwardFour identical metal spheres have charges of qA = -8.0 μC, qb=-2.0 μC, qc=+5.0 µC, and qp=+12.0 µC. (a) Two of the spheres are brought together so they touch, and then they are separated. Which spheres are they, if the final charge on each one is +5.0 μC? A and C V (b) In a similar manner, which three spheres are brought together and then separated, if the final charge on each of the three is +3.0 µC? A+B+D B+C+D A+B+D A+C+D A+B+C N = Number harge on each of the three separated spheres in part (b) is +3.0 µC. How many electrons would have to be added to one of to make it electrically neutral? i Unitsarrow_forwardA 38-g ball of copper has a net charge of 1 μC. What fraction of the copper's electrons have been removed? (Each neutral copper atom has 29 protons and 29 electrons, and copper has an atomic mass of 63.5 a.m.u.)arrow_forward
- Consider three identical metal spheres, A, B and C. Sphere A carries a charge of +5.0 nC. Sphere B carries acharge of -1.0 nC. Sphere C carries no net charge. Spheres A and B are touched together and then separated.Sphere C is touched to sphere A and separated from it. Last, sphere C is touched to sphere B and then separatedfrom it (a) How much charge ends up on sphere C? What is the total charge on the three spheres (b) before theyare allowed to touch each other and (c) after they have touched? Write your answers in C.arrow_forwarda) What is the charge on the other bearing, after separation? b) What was the net charge on both bearings before separation?arrow_forwardConsider three identical metal spheres, A, B, and C. Sphere A carries a charge of +6q. Sphere B carries a charge of -5g. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and separated from it. Last, sphere C is touched to sphere B and separated from it. For the following questions, express your answers in terms of q. (a) How much charge ends up on sphere C? 0.5 (b) What is the total charge on the three spheres before they are allowed to touch each other? 0.25 (c) What is the total charge on the three spheres after they have touched? 0.375 Additional Materials M eBook JAN 12 tv MacBook Air DII 80 F7 F8 F6 esc F4 F5 F1 F2 F3 * 24 %arrow_forward
- Two point charges are placed on the x axis. A charge of qA= +4.54 μC is placed at x= 0 and a charge of qB= -2.87 μC is placed at x=d. When a third point charge qC is placed at x= 2.29d, the electric force on the charge at x= 0 doubles in magnitude but maintains its original direction. What is qC?arrow_forwardA 0.01294 kg ball with a positive charge of 47.4 μC hangs from a light string right next to a large vertical metal plate (the metal plate is so large compared to the length of the string and ball consider it to be infinite in size). How much surface charge density must the plate have to repel the ball so that the string makes and angle of 5.03 degrees from the vertical. Give your answer to 3 significant figures and in units of nC/m/m (nanoCoulombs per meter squared: Blackboard has trouble with squred units). Type in the units right after your numerical answer.arrow_forwardTwo very small spherical  metal objects, each with 1 coulomb of charge, are brought together in a vacuum so that the separation distance between their centers is 1 mm.  what is the force of repulsion between the two objects? (Coulombs constant is k= 9.0 x 10^9) . Answer is 9 x 10^15 N . Would like to see how that answer is gotten.arrow_forward
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