February 27, 2017

Homework Help: physics

Posted by Matt on Wednesday, August 25, 2010 at 3:57pm.

a ball with a mass of 0.150 g and positive charge of q=41.2 C is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of =22.0o from the vertical. What is the magnitude of the electric field?

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