Degausser creates a magnetic field that erases data from magnetic storage media. a. true b. false

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror

This city is the capital of the state of georgia since 1868 and was burned during the civil war.