2. How much stronger will the force between two charges be if the distance between them
is cut in half? If the original force was 50N,
what will the new force be?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

In a series circuit the __ is the same at every point