An infinite line of charge with linear density λ1 = -6.6μC/m is positioned along the axis of a thick conducting shell of inner radius a = 2.7 cm and outer radius b = 4.5 cm and infinite length. The conducting shell is uniformly charged with a linear charge density λ 2 = 3.1 μC/m.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

What was the first instrument to ever record an earthquake?

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.