Compare the interaction of a photon encountering a flat, reflective surface (a mirror) to one encountering a flat, transparent surface (a glass window). Describe the atomic- scale interactions that result in changes to the photon’s direction and/or speed. Explain how energy is conserved in each case.

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

What are two different ways you could find the value of a? explain these methods.

Which composition of water moves to begin a deepwater current?