19 Iii Two Positive Charges Q Are Affixed Rigidly To The X Axis One At X D And The Other At X D A Third Char 1 (42.52 KiB) Viewed 23 times
19 Iii Two Positive Charges Q Are Affixed Rigidly To The X Axis One At X D And The Other At X D A Third Char 2 (42.56 KiB) Viewed 23 times
19 Iii Two Positive Charges Q Are Affixed Rigidly To The X Axis One At X D And The Other At X D A Third Char 3 (42.56 KiB) Viewed 23 times
19. (III) Two positive charges +Q are affixed rigidly to the x axis, one at x = +d and the other at x = -d. A third charge +q of mass m, which is constrained to move only along the x axis, is displaced from the origin by a small distance s << d and then released from rest. (a) Show that (to a good approxima- tion) +q will execute simple harmonic motion and determine an expression for its oscillation period T. (b) If these three charges are each singly ionized sodium atoms (q = Q = +e) at the equilibrium spacing d = 3 x 10-¹0 m typical of the atomic spacing in a solid, find T in picoseconds. (III) m 32
19. (III) Two positive charges +Q are affixed rigidly to the x axis, one at x = +d and the other at x = -d. A third charge +q of mass m, which is constrained to move only along the x axis, is displaced from the origin by a small distance s << d and then released from rest. (a) Show that (to a good approxima- tion) +q will execute simple harmonic motion and determine an expression for its oscillation period T. (b) If these three charges are each singly ionized sodium atoms (q = Q = +e) at the equilibrium spacing d = 3 x 10-¹0 m typical of the atomic spacing in a solid, find T in picoseconds. (TTI) m 32
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