Please include all work and equations you use

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?

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge