Two 15 N forces in same directions are acting on an object. What is the magnitude of the net force?

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?

Select the three ways that the parallel-plate capacitor differs from a car battery.

Select the correct answer. what does the process of natural selection involve?