Analyze the image below. Why do you think the two solutions have different intensities of color (ie, why is one a paler yellow than the other)? Explain in no fewer than three sentences (at least three sentences), and be sure to look for any additional evidence in the picture to support your answer. *

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

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.

What energy transformations occur each time the skateboarder rolls up the ramp?