Aresistor and an inductor are connected in series to a battery. the battery is suddenly removed from the circuit. the time constant for of the circuit represents the time required for the current to decrease to . a) 50% of the original value. b) 75% of the original value. c) 37% of the original value. d) 25% of the original value. e) 63% of the original value

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

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.