Solving a problem in physics section 73 point 56 electr

Solving a problem in physics section 73 point 56 electr

56. In an electric field, the intensity vector of which is directed horizontally and equal modulo 1000 V / m, the thread with a small charged ball suspended on it deviated at an angle of 45 ° from the vertical. The mass of the ball is 1.4 g. What is the charge of the ball? Express the response in microcoulombs (µC) and round to the nearest whole.

Additional information:

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