A spherical water drop 1.6 um in diameter is suspended in calm air due to a downward-directed
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A spherical water drop 1.6 um in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 1000 N/C.
(a) What is the magnitude of the gravitational force on the drop? (b) How many excess electrons does it have?
(a) Number _______ Units _______
(b) Number _______ Units _______
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