A3.0-kg block is on a horizontal surface. the block is at rest when, at t = 0, a force (magnitude p = 12 n) acting parallel to the surface is applied to the block causing it to accelerate. the coefficient of kinetic friction between the block and the surface is 0.20. at what rate is the force p doing work on the block at t = 2.0 s?

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet. whats one advantage of using electromagnetic in devices

Why does lightning travel from clouds to the ground?