Problem 18.02. Extra Credit. A spring attached to a wall on the left side has a con- ducting ball attached to the right end. The spring has a spring constant k, and a natural length xo. If the conducting ball is charged with a charge q and a second conducting ball with charge is placed a distance R from where the spring meets the wall, show that the equilibrium length of the spring eq has a cubic form ax³ + bx² + cx + d = 0 and write the coefficients a, b, c, d.
Problem 18.02. Extra Credit. A spring attached to a wall on the left side has a con- ducting ball attached to the right end. The spring has a spring constant k, and a natural length xo. If the conducting ball is charged with a charge q and a second conducting ball with charge is placed a distance R from where the spring meets the wall, show that the equilibrium length of the spring eq has a cubic form ax³ + bx² + cx + d = 0 and write the coefficients a, b, c, d.
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Transcribed Image Text:Problem 18.02. Extra Credit. A spring attached to a wall on the left side has a con-
ducting ball attached to the right end. The spring has a spring constant k, and a natural
length ro. If the conducting ball is charged with a charge q and a second conducting ball
with charge Q is placed a distance R from where the spring meets the wall, show that the
equilibrium length of the spring eq has a cubic form ax³ + bx² + cx + d = 0 and write the
coefficients a, b, c, d.
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