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OpenStudy (anonymous):
what is the strength of the electric field 3.5cm from a small glass bead charged to +7.7nC?
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OpenStudy (anonymous):
do i just use the equation: \[F=(k|q _{1}||q _{2}|)/r ^{2}\] just without q2?
OpenStudy (anonymous):
nevermind, can't use it, C^2 doesn't cancel
OpenStudy (anonymous):
F=qE
OpenStudy (shayaan_mustafa):
use equation. E=kq/r²
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