How much kinetic energy does a 55 kg object have that is traveling 20m/s?

Aregular polygon has angkes of size 150° each.how many side has the polygon

Which of the following is an example of units for speed

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