a sound wave traveling through dry air has a frequency of 16hz a wavelength of 22 m and a speed of 350 m/s. when the sound wave passes through a cloud of methane its wavelength changes to 28 m while its frequency remains the same what is its new speedA. 448 m/sB. 9,800 m/sC. 13 m/sD. 350 m/sSUBMIT

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

What is the rate of change in a objects position?

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points