Velicity produces a sound of wavelenghth 2m. If the
Speed of sound is 330m/s, then calculate the frequency of
this sound wave.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

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

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.