Aloudspeaker is placed between two observers who are 125 apart, alonq the line connecting them. if one observer (observer a) records a sound level of 55 db and the other (observer b) records a sound level of 85 db, how far is the speaker from each observer? m (from observer a) m (from observer b)

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.