Sebuah gelombang longitudinal memiliki 4 renggangan dan 3 rapatan ,jika priode gelombang longitudinal tersebut 0,2 sekon waktu yang di butuh kan untuk terjadi rapatan dan renggangan sebesar

What is the length x of the side of the triangle below? (hint: use the cosine function)

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?

Inside stars in space, the nuclei of hydrogen atoms fuse together to form helium atoms. this represents which form of energy? electrical energy nuclear energy chemical energy radiant energy