An object on the surface of the earth has a weight of W. The object is moved to a distance of 2 earth radii above the earth’s surface. What is the new weight of the object? a) W b) W/3 3c) 9W c) W/9

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?