in order to see the moon in the same position two nights in a row the earth must rotate for a day plus (blank)

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

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.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?