Approximate the gravitational force of attraction between a 50.0 kg girl and a 66.0 kg boy if they are sitting 2.0 m apart in physics class. ___N

*Notice how small the answer is. The boy and girl are certainly not very attracted to each other. This is why the gravitational force between objects is normally ignored when drawing free-body diagrams. The force of gravity is incredibly small unless a very, very large mass is involved (e. g. a planet).

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.