4. A small non-conducting ball, with a mass of 1.0 x 10-3 grams and a charge of 20 nC, hangs from a thread that is attached to a uniformly charged, non-conducting sheet. The thread makes an angle of 30° with the vertical, as shown in the diagram. Determine the surface charge density o of the sheet. NOTE: This is a force problem. Start with a force diagram for the ball, of course! *XXXXX sheet of charge with surface charge density o
4. A small non-conducting ball, with a mass of 1.0 x 10-3 grams and a charge of 20 nC, hangs from a thread that is attached to a uniformly charged, non-conducting sheet. The thread makes an angle of 30° with the vertical, as shown in the diagram. Determine the surface charge density o of the sheet. NOTE: This is a force problem. Start with a force diagram for the ball, of course! *XXXXX sheet of charge with surface charge density o
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Transcribed Image Text:4. A small non-conducting ball, with a mass of 1.0 x 10-3 grams and
a charge of 20 nC, hangs from a thread that is attached to a
uniformly charged, non-conducting sheet. The thread makes an angle
of 30° with the vertical, as shown in the diagram. Determine the
surface charge density o of the sheet.
NOTE: This is a force problem. Start with a force diagram for the
ball, of course!
30°
sheet of charge with surface.
charge density o
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