In an ecosystem, a population can be defined as
a.
all the individuals of a species that exist together at a given place and time.

b.
all individuals of a species born in a specified month in every region of the world.

c.
all individuals of a species that exist or have existed in a given place.

d.
all the individuals of every species at a given place and time.

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?