A. Suppose you have one magnet in a straw with its North pole pointed upward. What would happen if you put another
magnet into the straw with it's North pole pointed downward?
The magnets would be strongly attracted to each other.
b. The magnets would be weakly attracted to each other.
The second magnet would be pushed out of the straw
d. The magnets would repel each other.
C.

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?