Did u mean "an object's weight depends on its mass"?
In this case, on earth, the weight of something is the same as the mass of that object, because you include the gravity in weight. But the weight of something on the moon is less than its mass because there's less gravity on the moon.
A master's degree in fashion classically takes about two or three years to complete. The amount of time taken will depend on the credit load carried per semester. You should also take the degree as prescribed by the college or university.