63. A small lead sphere is encased in insulating plastic
Chapter 16, Problem 63(choose chapter or problem)
63. A small lead sphere is encased in insulating plastic and suspended vertically from an ideal spring (k = 126 N/m) above a lab table. Eig. 16-63. The total mass of the coated sphere is 0.800 kg. and its center lies 15.0 cm above the tabletop when in equilibrium. The sphere is pulled down 5.00 cm below equilibrium, an electric charge Q = -3.00 X 10-6C is deposited on it and then it is released. Using what you know about harmonic oscillation, write an expression for the electric field strength as a function of time that would be measured at the point on the tabletop (?) directly below the sphere.
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