The thickness of an aluminum foil is measured using 315-nm wavelength light in a Michelson interferometer that has its movable mirror mounted on a very finely threaded distance gauge (commonly called a "micrometer screw gauge" or often just a "micrometer"). There is a difference of 27 fringes in the observed interference pattern when the micrometer clamps down on the foil compared to when the micrometer is empty (clamped down on nothing). Calculate the thickness of the foil?

the answer is d

lies a supermassive black hole called sagittarius a*, or sgr a* for short.

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

a electromagnetic waves