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To run the simulation, you will alter mass in creating momentum of the carts. The total mass of the carts in the
collision is the
variable,
The velocity of the combined carts after the collision will change because of the change in the independent variable.
In this way, the final velocity is the
variable

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?