February 26, 2017

Homework Help: physics

Posted by amber on Thursday, September 3, 2009 at 1:42pm.

A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 7840 N/C. The mass of the water drop is 3.84 10-9 kg.
(a) Is the excess charge on the water drop positive or negative?

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