A hiker walks 34 cm from her base camp at 67 degrees with respect to the x axis. The next day she walks 93 cm in a direction 28 degrees with the respect to the axes and discovers a pond. Find the magnitude and direction of her resultant displacement between the base camp and the pond.

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.