We wish to calculate the value of eg. Two small metal conducting balls of mass m, each with charge q, are attached to massless strings of length L and suspended from the ceiling. Since the balls are both positively charged, they repel each other, and so at the ceiling the strings make an angle 0 with each other. In terms of m, q, L, 0, and g, what is en?
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- A piece of aluminum foil of mass 5.10 ✕ 10-2 kg is suspended by a string in an electric field directed vertically upward. If the charge on the foil is 2.20 µC, find the strength of the field that will reduce the tension in the string to zero.Three identical particles have the same mass m and positive charge Q. They are initial at rest in the corners of an equalateral triangle with sides a. One particle is released, What is the speed of the moving charge when it is a large (aka infinity) distance from the other two?Two small metallic spheres, each of mass m = 0.30 g, are suspended as pendulums by light strings from a common point as shown in the figure below. The spheres are given the same electric charge, and it is found that they come to equilibrium when each string is at an angle of 0 = 8.2° with the vertical. If each string has length L = 40.0 cm, what is the magnitude of the charge on each sphere? L m nC
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- A magnitude field of (0.004k) tesla exerts a force of (4î+31) × 10¯ 1ºN on a particle having charge of 1 × 10 °C and moving in x - y plane. The velocity of particle isTwo small spheres each have a mass m of 0.700 g and are suspended as pendulums by light insulating strings from a common point, as shown in the figure below. The spheres are given the same electric charge, and the two come to equilibrium when each string is at an angle of 0= 6.00%; with the vertical. m OK 410 m 1) If each string is 1.00 m long, what is the magnitude of the charge on each sphere? (Express your answer to three significant figures.) x 10-⁹ CTwo small balls, each of mass 3.0 g, are attached to silk threads 30 cm long, which are in turn tied to the same point on the ceiling, as shown in the figure. When the balls are given the same charge Q, the threads hang at 0 = 3.0° to the vertical. What is the magnitude of Q?