NEED HELP ASAP TEST IS DUE TMR An object has point masses found at the following coordinates and magnitudes:

1kg(-1m,1m)

2kg(0m,2m)

3kg(2m,2m)

Find the coordinates for the center of gravity of the object.

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.