A tuning fork is struck, producing a pure tone as its tines vibrate. The vibrations are modeled by the function

v(t) = 0.5 sin(970t)

where v(t) is the displacement of the tine in millimeters at time t seconds.(a) Find the period of the vibration. ____ s (b) Find the frequency of the vibration, that is, the number of times the fork vibrates per second. _____ vibrations per second