well it all started with LMFAO the band of cores!
proten+neutron
[http://www.answers.com/topic/mass-spectrometry Click here for the answer from Answers.com]
The first step in calculating mass properties of an object is to assign the location of thereference axes. The center of gravity and the product of inertia of an object can have anynumerical value or...
mass = (density)(volume).