A benign mass is a mass, that is non cancerous. I does not have the invading or destructive properties that cancer does. A benign mas could be a mole, lump, or tumor. They may grow in size but they do not invade other organs.
Yes, mass has mass. It is, therefore, matter. If mass did not have mass, then it is "something" with no mass. That would make it "non-matter" and perhaps it might be energy.
to solve for mass u divide force by acceleration . to find force u multiply mass and acceleration and to find acceleration u divide force by mass , force is measured in newtons (N) and mass is...