When looking north and running time fast forward you see

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.

An atom that has gained or lost electrons is called an _