Adc motor with its rotor and field coils connected in series has an internal resistance of 3.2 ω. when running at full load on a 120-v line, the emf in the rotor is 105 v.

Convection occurs when thermal energy is transferred by the movement of

One kind of e-book display consists of millions of very small spheres that float in a thin fluid layer between two conducting transparent plates. each sphere is black on one side and white on the other, and possesses an electric dipole moment directed from the white side to the black. when an electric field is applied between the plates, the spheres rotate so that their dipole moment lines up with the field. depending on the fields direction, either the black or the white sides of th espheres can be made visible.the dipole moment of the spheres can be modeled as two opposite charges of magnitude 3.5 x 10^-15 c, separated by a distancce of 100 micrometers (um). what is the maximum possible torque on a sphere if the electric field between the transparent plates is 4.0 x 10^5 n/c

An 800 kg car is moving at 32 m/s. what magnitude force is needed to bring that car to a stop in 30 seconds?