Which projectiles will be visibly affected by air resistance when they fall?

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

your answer is c! hope this : )

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr