You are given a four-wheeled cart of mass 14 kg, where the distance between a wheel and its nearest neighbors is 2.0 m. Suppose we load this cart with a crate of mass 102 kg, where the crate's center of mass is located in the back-middle of the cart, 0.500 m from its center.(a) Find the weight on the nearer wheels of the cart under this load.(b) Find the weight on the farther wheels of the cart under this load.

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.