Consider the physical quantities s, v, a, and t with dimensions [s] = L, [v] = LT −1, [a] = LT −2, and [t] = T. Determine whether each of the following equations is dimensionally consistent. (a) v^2 = 2as; (b) s = vt^2 + 0.5at^2; (c) v = s/t; (d) a = v/t.

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