HELP PLZ

What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?

Properties seen when one one substance changes to another are known as properties

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine