Suppose a vector v makes an angle ϕ with respect to the y axis. part a what could be the x and y components of the vector v ? express your answers in terms of the variables v and ϕ separated by a comma.

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?

How many atoms of nitrogen are in the chemical formula ni(w on

Why does magnet 5 float above magnet 4