No, there is no formal procedure for establishing a legal residence in Massachusetts. Voter registration, automobile registration, a driver's license, the appearance of a person's name on a city or town street list, and rent, utility, mortgage or telephone bills normally provide tangible proof of residence.
You weight it.
mass = volume X density
Mass.
The amount of matter (mass) in a certain amount of space (Volume).
Density refers to a given mass in a certain volume, so the volume and mass would both become smaller by he same amount.
It has like more dense
density
amount of mass contained in a certain space
Amount of mass contained in a certain space There is also linear density, mass per unit length. Sometimes density is a force per unit of volume instead of a mass per unit of volume.
Mass per unit volume is the object's "Density".
The massof an object is how much matter there is in the object.
Black Holes are created when stars above a certain mass start collapsing in on themselves. They're mass affects space time and they become a small point in space with an unimaginably large amount of gravity.