A jogger runs uphill for a race at an angle of 40 degrees for a distance of 98 m. What is the vertical displacement and horizontal displacement of the jogger ?

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

The discovery of the electron as a subatomic particle was a result of

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?