3) a defense football player on one team tackles the other team’s quarterback, who is running down the field. the quarterback is pushed to the ground by the defensive player. 4) apply newton’s first law to explain what happened?

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?