Physics

A small 9g plastic ball is suspended by a 35 cm long string in a uniform electric field 1110 N/C as shown. The ball is in equilibrium when the string makes a 23 degree angle with the vertical.

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asked by Eliz
  1. Find the relationship among deta,mg, and qE.

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    posted by Eliz
  2. what is deta? Maybe you mean Theta, the angle.

    Draw a force diagram, qE along the horizontal, and mg downward.

    is Tan Theta= qE/mg ?

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