26. If you push to the right on a box with a force of 22 N and your friend pushes the opposite direction with a force of 18 N will the box move?
which direction?
what is the net force? (if any)

The least penetrating form of radiation is

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge