Julio measured the weight of a grain of sand and found it to be 3.5 times 10 Superscript negative 10 kg. He also measured the weight of one hair from his eyebrow and found that to be 7 times 10 Superscript negative 8 kg. What is the total weight of both objects?
3.507 times 10 Superscript negative 10 kg
7.035 times 10 Superscript negative 10 kg
3.507 times 10 Superscript negative 8 kg
7.035 times 10 Superscript negative 8 kg

In most resting cells, the concentration of sodium ions is higher outside of cells compared with the intracellular fluid. when cells are stimulated, sodium ion channels open, and sodium diffuses from the outside of the cell to the inside of the cell. sodium ion concentrations in a resting cell are an example of and sodium ion movement in a stimulated cell is an example of in most resting cells, the concentration of sodium ions is higher outside of cells compared with the intracellular fluid. when cells are stimulated, sodium ion channels open, and sodium diffuses from the outside of the cell to the inside of the cell. sodium ion concentrations in a resting cell are an example of and sodium ion movement in a stimulated cell is an example of potential energy; kinetic energy kinetic energy; potential energy the energy of motion; stored energy chemical work; energy stored in chemical bonds