The surface of a square metallic sheet of side 100 cm  has charges uniformly distributed over its surface with a charge density of 20 Cm – 2. The value of total charges uniformly distributed over the surface of the metallic sheet is:

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?