A mass is oscillating up and down on a spring. Below is a graph of its vertical position as a function of time.

=force × distance a. work b. velocity c. pressure d. momentum

The ozone hole appears in antarctica during

When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.