Sound travels slower in colder air than it does in warmer air. why does the speed of sound depend on air temperature?

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2