For their to be sound matter has to a. vibrate b. rotate c. echo d. radiate

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

True or false graphs must include scales that increase by the same amount

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water