2. Two skateboarders. Jess and Tony, face each other on their skateboards and are initially at rest. Tony has 1.5 times as much mass as Jess. Tony pushes in the positive x direction on Jess's back with a force F, causing Jess to start moving away from Tony. What is the magnitude and direction of Jess’ acceleration? What is Tony's acceleration?

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