A student observes that for the same net force, heavier objects accelerate less. Which statement describes a correct conclusion? 1) There is a positive correlation between mass and acceleration. 2) There is a negative correlation between mass and acceleration. 3) An increase in acceleration causes the mass to increase. 4) An decrease in acceleration causes the mass to increase.

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?