An astronaut on a planet with no atmosphere drops a feather into a 5.69m deep crater and records that the feather falls freely for 1.49s.

yo yo yo its papaguy in the house lol

okay, ima .

um it shows links to uh so kinda microsoft website is that were ima go or no? ?

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.

the doppler effect is used by weather forecasters to measure 

moving clouds