Arrange the following celestial objects in order of increasing size: (from small to large) Reorder answers
1.Solar System
Reorder answers
2.Nebula
Reorder answers
3.Universe
Reorder answers
4.Planet
Reorder answers
5.Galaxy

PLEASE HURRY IM TAKING A TEST

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)