Which of the following objects is considered negatively charged a - one with excess electrons on the surface b - one with excess neutrons on the inside c - one with excess protons on the inside d - one with excess protons on the surface

Hydrogen and helium are both members of?

Photons with the highest energy have the longest period

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?