In trying to get a better understanding of the double slit interference phenomenon, a Physics student sets up two slits in such a way, where a thin piece of clear glass (n = 1.57) covers one of the slits on the side facing the screen. A semiconductor laser illuminates the slits from the other side (wavelength = 638 nm).
It is noticed that the central region on the screen is now covered by what was previously the m = 10 dark fringe. How thick is the glass?

Asher cycles 12 miles in 16 hours. what is his speed?

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?

Current from a charged capacitor lights a bulb. as time goes on the brightness of the