Arubber band has potential energy of 5 j. if the spring constant of the rubber band is 50 n/m, what is the displacement of the rubber band? 0.2 m 1.2 m 0.4 m 0.8 m

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?

As more bulbs are added to a series circuit what happens to the resistance of the circuit