The pedals are a crucial component of the piano. the function of the soft pedal is to reduce the amount and quality of the sound. on an upright piano, the soft pedal: shifts keyboard mechanism sideways moves the hammers closer to the strings lifts all the felt dampers above the strings shifts control of the sound duration from the hands to the feet of the performer

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