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Introductory Physics Homework Help
Mass of charged sphere suspended between charged plates
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[QUOTE="krbs, post: 5508123, member: 583568"] [h2]Homework Statement [/h2] A small sphere with charge 2.4 micro coulombs is suspended from a thread between 2 charged plates. The plates have a voltage of 62 and the distance between the plates is 3.1 cm. The sphere hangs at 18 degrees to the vertical. [h2]Homework Equations[/h2] E = V/r FE = Eq Fnetx = FE - FT Fnety = FTy - Fg [h2]The Attempt at a Solution[/h2] [/B] E = 62V/0.031m = 2000 N/C FE = Eq = (2000 N/C)(2.3 x 10^-6 C) FTx = FE = 4.6 x 10^-3 N FTy = FE * tan18 degrees = 4.6 x 10^-3 N * tan18 = 1.5 x 10^-3 N Fg = mg 1.5 x 10^-3 N = m(9.8 m/s^2) m = 1.5 x 10^-4 kg [/QUOTE]
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Introductory Physics Homework Help
Mass of charged sphere suspended between charged plates
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