as shown in the drawing, between the oarallelplates of the capacitor there is a small plastic ball with mass m = 0.007kg and carries charge q = +2.0*10^-7 C hangs by two elastic threads fixed at points A and B (elastic force is propertional to the extension of the thread and the constant of proportionality k = 5.0 N/m). the ball is in equilibrium, with the two threads making an angle theta = 30 degrees with respect to the horizontal. the distance between A and B is 2l = 0.20m. the area of each plate is 0.02m^2. a. find the tension T in each string. a. what is the magnitude of the charge Q on each plate of the capacitor?
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as shown in the drawing, between the oarallelplates of the capacitor there is a small plastic ball with mass m = 0.007kg and carries charge q = +2.0*10^-7 C hangs by two elastic threads fixed at points A and B (elastic force is propertional to the extension of the thread and the constant of proportionality k = 5.0 N/m). the ball is in equilibrium, with the two threads making an angle theta = 30 degrees with respect to the horizontal. the distance between A and B is 2l = 0.20m. the area of each plate is 0.02m^2.
a. find the tension T in each string.
a. what is the magnitude of the charge Q on each plate of the capacitor?
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