Module 6 topic 1 Please help show work

A duck floating on a pond bobs up and down four times every 3.0 seconds as water waves pass. What is the frequency of the water waves? . 4.0 112 3.0 sec 12 Hz 1.33 Hz 0.75 sec In a transverse wave, the medium vibrates the direction of energy transmission. -opposite to -parallel to - perpendicular to - above -below Which type of wave results in circular motion of the medium? -circular wave -transverse wave -surface wave -longitudinal wave -wave pulse Long Answer. Answer the following questions, showing all work. Identify the parts of the following wave: . A submarine emits a sound pulse at 750.0 Hz that bounces off an enemy sub and returns 2.5 seconds after it is emitted. (Consider the speed of sound in water to be 1490.0 m/s) What is the wavelength (2) of the sound waves? What is the period (T) of the sound waves? . The speed of light in air is 2.998 x 108 m/s. A red laser emits light with a wavelength of 635 nm. What is its frequency? (Report your answer in s" and remember to convert nanometers to meters.) A blue laser emits light with a frequency of 6.74 x 1014 s'. What is its wavelength? (Report your answer in nanometers, converting your answer from meters.)