What are four metals other than iron that can be made to exhibit magnetic properties? Fill in the blank. Every magnet has unlike poles. The within a magnet lies between the north and south poles. If the north pole of a bar magnet is brought near the pole of another magnet, the two magnets will repel one another. A material that’s attracted by a magnet but doesn’t necessarily become a magnet itself is called a/an material.

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Explain vector addition, triangle method and parallelogram method

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?