Refraction occurs when___? a) light travels through two adjacent media with different optical densities
b) the angle of refraction equals zero
c) the angle of incidence equals zero

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.