55. A thread with a small ball suspended on it with a charge of 14 μC deflected at an angle of 45 ° from the vertical in an electric field, the intensity vector of which is directed horizontally and is equal to 1000 V / m in absolute value. What is the mass of the ball? Express the answer in grams and round to tenths.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)