Recent content by Joe Butler

Homework Statement Eyeglass lenses can be coated on the inner surfaces to reduce the reflection of stray light to the eye. If the lenses are medium flint glass of refractive index 1.62 and the coating is fluorite of refractive index 1.432, (a) what minimum thickness of film is needed on the...

This is just kind of an odd question that has to do more with concept than practice but if you were going 1m/s slower than the speed of light and were holding a laser pointer would the laser only point one meter ahead of you? I know that light doesn't add like normal vectors but this is...

Thank You! I actually decided to compare it to car crashes from the 1950s as that was the pre"crumple zone" era

For my physics class we have to show an example of bad physics in a movie. I am doing Mad Max 2: The road Warrior and the scene where the gyro captain crashes his ultralight helicopter but the helicopter is completely undamaged as he drives it later in the movie. I need to know what the force to...