What is the magnitude of the vertical electric field that will balance the weight of a plastic sphere of mass 2.1g that’s been chargers to -3.0nC? (k=9.0x10^9 N•m^2/C^2

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th