An electron travels at 2.0 x 107 m/s in a plane perpendicular to a 0.1 T magnetic field. What is the radius and period of the electron? (hint: recall centripetal force and tangential velocity)

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

What causes the formation of ocean currents?

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.