The summit of Olympus Mons, the tallest volcano in the solar system
is 21,229 meters high located on
the planet Mars. You decide to
drop a coin to see how long it
takes the coin to land. How long
does it take the coin to land? (Use
3.711 m/s2 for gravity.)

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?