Astronomy project - basic explanation of GAIA mapping
- how the ESA uses GAIA and the purpose of the ESA GAIA mission
- other ways GAIA is used outside astronomy
- additional information/ interesting facts about GAIA mapping

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

Which composition of water moves to begin a deepwater current?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)