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.
For a point-like mass, the moment of inertia about some axis is given by mr2, where r is the distance to the axis, and m is the mass. For an extended body, the moment of inertia is just the sum of all the small pieces of mass multiplied by the square of their distances from the axis in question.