The period of oscillation for a tuning fork tine is 2.3 x 10" s. What is its frequency? Select one: O a. 225 Hz O b. 880 Hz O C. 435 Hz O d. 510 Hz 150 force (N) 100 50 10 20 30 40 spring extension (cm) Various forces were applied to a spring and the amount the spring stretched was then measured. The values obtained from this experiment were used to draw the graph that is shown. The value of the spring's constant is Select one: O a. 0.30 N/cm O b. 6.0 N/cm O c. 3.3 N/cm O d. 20 N/cm The number of complete vibrations per second is the Select one: a. frequency O b. period O c. wave pulse O d. wavelength