Question

Three positive charges are arranged as shown in the diagram.

What is the magnitude and direction of the net electrical force acting on the +3 µC charge?

magnitude: 1.75 N
direction: 6.2° north of east
magnitude: 1.75 N
direction: 6.2° south of east
magnitude: 1.86 N
direction: 21° north of east
magnitude: 1.86 N
direction: 21° south of east

Answer 1

The Richter Scale is not commonly used anymore, except for small earthquakesrecorded locally, for which ML and Mblg are the only magnitudes that can be measured. For all other earthquakes, the moment magnitude scale is a more accurate measure of the earthquake size.

Answer 2

magnitude: 1.75 N

direction: 6.2° north of east