A-2.OuC point charge and a 4.0uC point charge are a distance L apart. If the electric force between the two charges is 11.25 N, what is the length of L?
Answer =
m (report your answer to the thousandths place)

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The energy equivalent of the rest mass of an electron is

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?