Water at 20°C enters section 1 at a rate of18 gal/min. The average velocity at section 2 is 3 m/s. A portion of the flow is diverted through the showerhead, which contains 200 holes of 1-mmdiameter. Assuming uniform shower flow, estimate the exit velocity from the showerhead jets.

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