I need help with these 6 question, thank you!

In this example we will look at the periodic SOLUTION motion of an ultrasonic transducer, a kind ot ultrasonic loudspeaker used tor medical diagnosis. The transducer is oscillating at a frequency of 5.7 MHz (6.7 x 10\" Hz). How much time does each oscillation take, and T 1_ 1 _ 1 5 10_ what is the angular frequency? :f 3.7x to Hi ' x 27rf = 2146.7 x 105112) = 4.2 >