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The field just outside a 2.80 cm radius metal ball is 2.95 102 N/C and points away from the ball. What charge resides on the ball?

The field just outside a 2.80 cm radius metal ball is 2.95 × 102 N/C and points away from the ball. What charge resides on the ball?

The total electric flux from a cubical box 30.0 cm on a side is 1.65 × 103 N·m2/C. What charge is enclosed by the box?

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