The idea that the universe began from a single point and
expanded to its current size explains a large number of
observations, including those in the table below.
In addition, many predictions based on the idea have led to
additional observations that support it. This idea of the origin
of the universe is best classified as a
Observations Explained
The universe consists mostly of low-mass elements
Cosmic microwave background is nearly the same in all directions
Light from other galaxies shows that these galaxies are moving away
from Earth
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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?