When air molecules get heated, what happens to the warmer air? * move faster
move further apart
O gets pushed up by the colder air
All of the above

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Hunter’s velocity was 4.5 m/s. at the end of his race, his velocity was the same. which best describes his movement? his movement stopped. his acceleration is zero. his time was constant. his acceleration was positive.

7types of electromagnetic waves from lowest to highest frequency