What is the kelvin temperature for 30°c?

Which term best describes the form sound takes as it travels away from a drum (a- gas)(b-music) ( c-waves) (d-particles

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?