3) Suppose you want to make a little plastic ball with mass m 2 1g hover in midair due to an externally applied uniform vertical electric field balancing the ball's weight If the electric charge on the ball is 2 0 nC (nano Coulombs), how strong must the electric field be 3) Suppose you want to mak...

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3) Suppose you want to make a little plastic ball with mass m = 2.1g hover in midair due to an externally

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Physics

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