Which one of the following explains how light energy helps us see all kinds of objects around us? a flashlight shining light on a book

Light is absorbed by the objects and does not reach our eyes.

The objects emit light that enters our eyes.

Light reflects off the objects and enters our eyes.

Light travels in a straight line until it enters our eyes

Btw the picture is a flashlight pointing to a book

What happens to isotopes that are unstable?

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

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?