Buddy-Aid. 1  Casualties with severe symptoms may experience most or all of the mild symptoms described above, plus most or all of the following: -. 2  If you encounter a service member suffering from severe signs of nerve agent poisoning, render the following aid: Mask the casualty, if necessary. Do not fasten the hood.
EARTH'S MASS, DENSITY, AND MOMENT OF INERTIA. To learn what the earth is made of, our first constraint is its density (mass / volume). We find its mass from the acceleration of gravity g. The universal law of gravity says that the force F betwen objects M and m.
Much of what we know about the distribution of mass within planets comes from their moments of inertia. The moment of inertia controls the rate at which a planet spins and the location of the spin axis depend on the distribution of mass in each body. We illustrate this concept by racing a metal ring and disk, which have the same mass but different moments of inertia, down an incline.