They have to deal with too much mass in his case.

We'll start with mass, and work our way up to energy.

So, only the case with a positive mass is physical.

The big problem had always been what to do with the extra mass.

Slow to be moved, when they do move it is with the whole mass of the heart.

Even so, the waiting crowd heard each result and soon they would vote with the mass of men before them.

Two soldiers held him with their mass while the doctor pulled.

Imagine a star with a mass ten times that of the sun.

His head was covered with a mass of thick, black hair.

Assume there are two systems with the same mass and specific heat.