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The cockroach Periplaneta americana can detect a static electric field of magnitude 7.00 kN/C7.00 kN/C using...

The cockroach Periplaneta americana can detect a static electric field of magnitude 7.00 kN/C7.00 kN/C using their long antennae. If the excess static charge on a cockroach is modeled as point charges located at the end of each antenna, what magnitude of charge ?q would each antenna possess in order for each antennae to experience a force of magnitude 7.00 μN7.00 μN from the external electric field? Calculate ?q in units of nanocoulombs (nC)(nC) .

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