I HAVE A GREAT QUESTION PLEASE ANSWER YOU GET 15 POINTS! PLEASE ONLY ANSWER IF YOU KNOW THE ANSWER. Say a box slides across a rough surface. It loses momentum, since it slows down. This is because of the force of friction acting on it. BUT WHERE DOES THAT MOMENTUM GO? Does it go into the atoms on a microscopic level? Does it go into the surface? Where?
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What will a positive and a negative charge do if they are separated from each other?

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

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.