Suppose you performed the experiment in atmosphere of argon at 25 deg. c, (viscosity of argon is 2.26x10^-5 n. s/m^2 at that temperature), and measured terminal speed of 2.64x10^-5 m/s and weight-neutralizing voltage of 35.0 v. how many electrons have been attached to, or detached from the initially neutral plastic sphere

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.