Two isotopes of a certain element have binding energies that differ by 5.4810 mev. the isotope with the larger binding energy contains one more neutron than the other isotope. find the difference in atomic mass between the two isotopes, by taking the energy equivalent of 1 u to be 931.50 mev. express your answer in atomic mass units.

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?