Astudent sees a newspaper ad for an apartment that has 1330 square foot of floor space. how many square meters of area are there?

Ways that industry and agriculture use physical properties to separate substances

Where do magnetic lines of force enter earth?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?