42 In Fig. 21-39, two tiny conducting balls of identical mass m and identical charge q hang from nonconducting threads of length L. Assume that e is so small that tan e can be replaced by its approximate equal, sin 0. (a) Show that /eje L. q²L 2περπg 1/3 gives the equilibrium separation x of the balls. (b) If L = 120 cm, m = 10 g, and x = 5.0 cm, what is lql? x-

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Q: Example 19-14 depicts the folwing scenario. Two charges, each equal to +2.90 C, are placed at two…

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Q: 42 In Fig. 21-39, two tiny conducting balls of identical mass m and identical charge q hang from…

A: (a) Free body diagram

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Q: 39 SSM In Fig. 21-38, particle 1 of charge +4e is above a floor by dis- tance di = 2.00 mm and…

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A: Answer              C. 40.93

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Q: *29 SSM www Figure 23-42 is a section of a conducting rod of ra- dius R1 = 1.30 mm and length L =…

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A: Answer             c. 40.93

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Q: 62 SSM In Fig. 21-44, what are the (a) magnitude and (b) direction of the net electrostatic force on…

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