A light ray propagates from air to glass. The refractive index for the glass is. Please help me I’m so bad at physics that I just wanna cry whenever I study it

1.5

Explanation:

sin i / sin r = n

i = 135 - 90 = 45

r = 118 - 90 = 28

sin (45) / sin (28) = n

n= 1.5

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

uranium fissions/breaks up giving out energy and neutrons