Which type of cell does the charger best model? A. Bone cell, because it is strong and stiff to provide support
B. Guard cell, because it changes in size to open and close a hole
C. Nerve cell, because it sends electrical signals
D. Epithelial cell, because it covers surfaces of a body

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?