A 139-g mass is suspended 133 cm above a nonconducting flat, Ask an Expert

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A 13.9-g mass is suspended 1.33 cm above a nonconducting flat plate, directly above an embedded charge of q.

a) If the mass has the same charge, q, how much must q be so that the mass levitates (just floats, neither rising nor falling)?

b) If the charge q is produced by adding electrons to the mass, by how much will the mass be changed?

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Reference No.:- M91061444

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