You're using a monochromatic beam of light with wavelength 500 nm in an interferometer. What is the minimum distance you would need to move one of the interferometer's mirrors to change a spot of constructive interference to a spot of destructive interference?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud