In dynamics, a particle is assumed to have . a mass but the size and shape cannot be neglected only a mass both translation and rotational motions no mass or size or shape, it is just a point

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.