A 2.0 m × 4.0 m flat carpet acquires a uniformly distributed charge of −10 μC after you and your friends walk across it several times. A 3.0 μg dust particle is suspended in midair just above the center of the carpet.

Part A

What is the charge on the dust particle?

Express your answer with the appropriate units.

q=

Which situation will produce the greatest change of momentum

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