The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. how much will an object, which weighs 98 newtons on the surface of earth, weigh on this point? the value of acceleration due to gravity on earth is 9.8 meters/second2

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?