What are 2 different ways you can improve your endurance, muscular strength, flexibility, and body composition before your next physical fitness test?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

I’ve been stuck on this for a while