Electrodisc, the sport of the future, has players skating across the field on hover shoes pushing around metallic discs. When discs collide players get points based on the amount of charge exchanged. The players today are playing the popular three disc variant of Electrodisc where each disc has the following charges: 9A= -59,98 = -2q, and qc = 0q(no net charge). In the first quarter of the game the opposing team is able to touch disc A and B together then separate them. Then the home team scores by touching disc C to disc and then separates them. Finally, the opposing team scores again by touching disc C to disc B and then separates them. (Give your answers in terms of q.) (a) What is the final charge of object C? 9 (b) Before the objects touch, what is their total charge? 9 (c) After the objects touch, what is their total charge? la

Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. Imagine adding electrons to the pin until the negative charge has the very large value 1.00 mC. How many electrons are added for every 109 electrons already present?

Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.113 N when their center-to-center separation is 45.4 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0532 N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on one of them and (b) the positive charge on the other? (Assume the negative charge has smaller magnitude.) Units (a) NumberT-0.05097 (b) NumberTo.04506 UnitsTc

Charges on raindrops vary widely in both magnitude and sign. Consider a case where the two drops on the x-axis are 2.18 mm apart and have charge q = 769 nC, while the third drop is 10.3 mm up the x-axis and has charge Q = -2.02 μC. (Figure 1) Figure x=-a x=a Part A Find the x-component of the electric force on the upper drop. Express your answer with the appropriate units. FQz = Submit Part B Foy= Submit μÀ Provide Feedback Value Request Answer Find the y-component of the electric force on the upper drop. Express your answer with the appropriate units. uÅ Value Units Request Answer ? Units ? Review | Constants Next >

Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.113 N when their center-to-center separation is 45.4 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres repel each other with an electrostatic force of 0.0532 N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on one of them and (b) the positive charge on the other? (Assume the negative charge has smaller magnitude.) (a) Number-0.000001 Units (b) NumberT0.0000026 UnitšTc