How heavy is an object that displaces 400n of water in a pool?

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

When you turn on a battery-operated device, an electrical circuit is

If element x has 99 protons how many electrons does it have