Abicycle wheel rotates uniformly through 2.0 revolutions in 4.0 s. what is the average angular speed of the wheel?

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

When measuring volume, why is it important to use the correct tools and units to attain the greatest accuracy? use specific examples from the lab to support your answer. (5 points)