Your brother does not heed your warning and decides to step to the fourth rung of the ladder. As expected, the ladder begins to slip. What is the magnitude of the frictional force at A during this period when the ladder is actually slipping

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

Acar of mass 800kg is moving at a speed of 2.2m/s.